<?php
namespace NyxonnBuilder;

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

/**
 * Admin Menu Manager for Nyxonn Builder
 * 
 * Registers the top-level "Nyxonn Builder" menu and its Free management pages.
 */
class Admin_Menu {

    /**
     * Initialize admin menu hooks
     */
    public static function init() {
        add_action( 'admin_menu', [ __CLASS__, 'register_menus' ] );
        add_action( 'admin_init', [ __CLASS__, 'handle_theme_builder_actions' ] );
        add_action( 'admin_post_nyxonn_builder_create_page', [ __CLASS__, 'handle_create_builder_page' ] );
        add_action( 'nyxonn_builder_expire_create_request', [ __CLASS__, 'expire_create_request' ] );
        add_action( 'wp_ajax_nyxonn_builder_save_template_conditions', [ __CLASS__, 'ajax_save_template_conditions' ] );
        add_filter( 'parent_file', [ __CLASS__, 'highlight_parent_menu' ] );
    }

    /**
     * Register main menu and submenus
     */
    public static function register_menus() {
        // Main Nyxonn Builder menu
        add_menu_page(
            __( 'Nyxonn Builder Dashboard', 'nyxonn-builder' ),
            __( 'Nyxonn', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder',
            [ __CLASS__, 'render_dashboard' ],
            'dashicons-layout',
            58.5
        );

        // Management pages use WordPress routing without populating the
        // visible Nyxonn submenu. The top-level page is the Dashboard.
        self::register_hidden_admin_page(
            __( 'Pages', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-pages',
            [ __CLASS__, 'render_pages_list' ]
        );

        self::register_hidden_admin_page(
            __( 'Global Design', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-global-design',
            [ __CLASS__, 'render_global_settings' ]
        );

        self::register_hidden_admin_page(
            __( 'Theme Builder', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-theme-builder',
            [ __CLASS__, 'render_theme_builder' ]
        );

        self::register_hidden_admin_page(
            __( 'Assets', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-assets',
            [ __CLASS__, 'render_assets' ]
        );

        self::register_hidden_admin_page(
            __( 'Role Manager', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-role-manager',
            [ __CLASS__, 'render_role_manager' ]
        );

        self::register_hidden_admin_page(
            __( 'Performance', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-performance',
            [ __CLASS__, 'render_performance' ]
        );

        self::register_hidden_admin_page(
            __( 'Integrations', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-integrations',
            [ __CLASS__, 'render_integrations' ]
        );

        self::register_hidden_admin_page(
            __( 'Tools', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-tools',
            [ __CLASS__, 'render_tools' ]
        );

        self::register_hidden_admin_page(
            __( 'Settings', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-settings',
            [ __CLASS__, 'render_settings' ]
        );

        self::register_hidden_admin_page(
            __( 'Builder Settings', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-builder-settings',
            [ __CLASS__, 'render_builder_settings' ]
        );

        // Keep this route available so it can present either the Free marketing
        // state or registered Pro status without changing admin URLs.
        self::register_hidden_admin_page(
            __( 'Upgrade to Pro', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-upgrade-pro',
            [ __CLASS__, 'render_upgrade_to_pro' ]
        );

        // Hidden page: Builder (accessed via URL parameter, no menu item)
        // This is hidden but accessible via ?page=nyxonn-builder-editor&post_id=X
        self::register_hidden_admin_page(
            __( 'Builder', 'nyxonn-builder' ),
            \NyxonnBuilder\Role_Manager::BUILDER_CAPABILITY,
            'nyxonn-builder-editor',
            [ __CLASS__, 'builder_page' ]
        );

        self::register_hidden_admin_page(
            __( 'Template Conditions', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-template-conditions',
            [ __CLASS__, 'render_template_conditions' ]
        );

        self::register_hidden_admin_page(
            __( 'All Templates', 'nyxonn-builder' ),
            'manage_options',
            'nyxonn-builder-templates',
            [ __CLASS__, 'render_templates_list' ]
        );

        foreach ( Extension_API::get_admin_navigation() as $item ) {
            self::register_hidden_admin_page( $item['page_title'], $item['capability'], $item['slug'], $item['callback'] );
        }
    }

    /** Register an admin.php route without adding a row beneath Nyxonn Builder. */
    private static function register_hidden_admin_page( $page_title, $capability, $menu_slug, $callback ) {
        return add_submenu_page(
            'admin.php',
            $page_title,
            $page_title,
            $capability,
            $menu_slug,
            $callback
        );
    }

    /**
     * Builder page callback - renders the page editor
     * This is called from URL parameter ?page=nyxonn-builder-editor&post_id=X
     */
    public static function builder_page() {
        // Import the actual builder page from Builder class
        // Get post_id from GET parameter
        $post_id = isset( $_GET['post_id'] ) ? intval( $_GET['post_id'] ) : 0;
        $template_type = isset( $_GET['template'] ) ? sanitize_text_field( wp_unslash( $_GET['template'] ) ) : '';

        if ( ! $post_id && $template_type ) {
            $post_id = self::resolve_template_post( $template_type );
        }

        if ( ! $post_id ) {
            wp_die(
                esc_html__( 'No page was selected. Create a page from the Nyxonn Builder dashboard, then open it here.', 'nyxonn-builder' ),
                esc_html__( 'No Page Selected', 'nyxonn-builder' ),
                [ 'response' => 400, 'back_link' => true ]
            );
        }

        // Check if post exists
        $post = get_post( $post_id );
        if ( ! $post ) {
            wp_die( 'Error: Page Not Found', 'Page Not Found', [ 'response' => 404 ] );
        }

        if ( ! Builder_Settings::can_open_builder( $post ) ) {
            wp_die(
                esc_html__( 'Nyxonn Builder editing is disabled for this post type. Existing saved layouts remain available on the frontend.', 'nyxonn-builder' ),
                esc_html__( 'Builder Unavailable', 'nyxonn-builder' ),
                [ 'response' => 403, 'back_link' => true ]
            );
        }

        // Check user permission
        if ( ! \NyxonnBuilder\Role_Manager::can_use_builder( $post_id ) ) {
            wp_die( 'Sorry, you are not allowed to access this page.', 'Permission Denied', [ 'response' => 403 ] );
        }

        $data = \NyxonnBuilder\Save::get_layout_for_post( $post_id );
        $data_b64 = '';
        if ( is_string( $data ) && '' !== $data ) {
            $data_b64 = base64_encode( $data );
        }
        $is_template_post = ! empty( $post ) && \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE === $post->post_type;
        $preview_context_id = $is_template_post && isset( $_GET['nx_preview_post_id'] ) ? absint( wp_unslash( $_GET['nx_preview_post_id'] ) ) : 0;
        $preview_context = $preview_context_id ? get_post( $preview_context_id ) : null;
        if ( $preview_context && ( ! in_array( $preview_context->post_type, [ 'page', 'post' ], true ) || ( ! current_user_can( 'read_post', $preview_context_id ) && ! current_user_can( 'edit_post', $preview_context_id ) ) ) ) {
            $preview_context = null;
            $preview_context_id = 0;
        }
        $exit_url = $is_template_post
            ? admin_url( 'admin.php?page=nyxonn-builder-theme-builder' )
            : get_edit_post_link( $post_id, 'raw' );
        if ( ! $exit_url ) {
            $exit_url = admin_url( 'edit.php?post_type=' . sanitize_key( $post->post_type ) );
        }

        $assigned_templates = [];
        $show_assigned_templates = ! empty( $post ) && \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE !== $post->post_type;
        $assigned_header = null;
        $assigned_footer = null;
        if ( $show_assigned_templates ) {
            $context = \NyxonnBuilder\Template_Manager::get_context_for_post( $post_id );
            $assigned_header = \NyxonnBuilder\Template_Manager::get_matching_template( 'header', $context );
            $assigned_footer = \NyxonnBuilder\Template_Manager::get_matching_template( 'footer', $context );

            if ( $assigned_header ) {
                $header_rules = \NyxonnBuilder\Template_Manager::get_template_rules( $assigned_header->ID );
                $header_layout = \NyxonnBuilder\Save::get_layout_for_post( $assigned_header->ID );
                $header_layout = is_string( $header_layout ) ? json_decode( wp_unslash( $header_layout ), true ) : [];
                if ( ! is_array( $header_layout ) ) {
                    $header_layout = [];
                }
                $assigned_templates[] = [
                    'id'          => intval( $assigned_header->ID ),
                    'type'        => 'header',
                    'title'       => $assigned_header->post_title,
                    'summary'     => \NyxonnBuilder\Template_Manager::get_rules_summary( $header_rules ),
                    'editUrl'     => admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . $assigned_header->ID ),
                    'layout'      => $header_layout,
                    'accentColor' => '#4338ca',
                    'bgColor'     => '#eef2ff',
                    'borderColor' => '#c7d2fe',
                ];
            }

            if ( $assigned_footer ) {
                $footer_rules = \NyxonnBuilder\Template_Manager::get_template_rules( $assigned_footer->ID );
                $footer_layout = \NyxonnBuilder\Save::get_layout_for_post( $assigned_footer->ID );
                $footer_layout = is_string( $footer_layout ) ? json_decode( wp_unslash( $footer_layout ), true ) : [];
                if ( ! is_array( $footer_layout ) ) {
                    $footer_layout = [];
                }
                $assigned_templates[] = [
                    'id'          => intval( $assigned_footer->ID ),
                    'type'        => 'footer',
                    'title'       => $assigned_footer->post_title,
                    'summary'     => \NyxonnBuilder\Template_Manager::get_rules_summary( $footer_rules ),
                    'editUrl'     => admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . $assigned_footer->ID ),
                    'layout'      => $footer_layout,
                    'accentColor' => '#15803d',
                    'bgColor'     => '#f0fdf4',
                    'borderColor' => '#bbf7d0',
                ];
            }
        }

        // Enqueue builder assets
        wp_enqueue_media();
        wp_enqueue_style( 'nyxonn-builder-admin', NYXONN_BUILDER_ASSETS_URL . 'css/admin.css', [], NYXONN_BUILDER_VERSION );
        wp_enqueue_style( 'nyxonn-builder-app', NYXONN_BUILDER_ASSETS_URL . 'css/builder.css', [], NYXONN_BUILDER_VERSION );
        wp_enqueue_style( 'nyxonn-builder-dark-ui', NYXONN_BUILDER_ASSETS_URL . 'css/builder-dark.css', [ 'nyxonn-builder-app' ], filemtime( NYXONN_BUILDER_PLUGIN_DIR . 'assets/css/builder-dark.css' ) );
        wp_enqueue_style( 'nyxonn-builder-frontend', NYXONN_BUILDER_ASSETS_URL . 'css/frontend.css', [], NYXONN_BUILDER_VERSION );
        wp_enqueue_script( 'nyxonn-builder-frontend', NYXONN_BUILDER_ASSETS_URL . 'js/frontend.js', [ 'jquery' ], NYXONN_BUILDER_VERSION, true );
        wp_enqueue_script( 'nyxonn-builder-app', NYXONN_BUILDER_ASSETS_URL . 'js/builder/app.js', Builder::get_builder_script_dependencies(), NYXONN_BUILDER_VERSION, true );
        wp_script_add_data( 'nyxonn-builder-app', 'type', 'module' );
        
        wp_localize_script(
            'nyxonn-builder-app',
            'nyxonnBuilderSettings',
            [
                'nonce'      => wp_create_nonce( 'wp_rest' ),
                'saveNonce'  => wp_create_nonce( 'nyxonn_builder_save_nonce' ),
                'ajaxUrl'    => esc_url_raw( admin_url( 'admin-ajax.php' ) ),
                'postId'     => $post_id,
                'postTitle'  => $post ? $post->post_title : '',
                'apiRoot'    => esc_url_raw( rest_url() ),
                'previewUrl' => esc_url( get_permalink( $post_id ) . '?nx_preview=1' ),
                'exitUrl'    => esc_url_raw( $exit_url ),
                'layoutDataB64' => $data_b64,
                'pluginUrl'   => esc_url_raw( NYXONN_BUILDER_PLUGIN_URL ),
                'pluginPath'  => esc_url_raw( NYXONN_BUILDER_PLUGIN_URL . 'assets/js/builder/' ),
                'assignedTemplates' => $assigned_templates,
                'dynamicContent' => \NyxonnBuilder\Dynamic_Content::get_builder_payload( $post_id ),
                'previewContext' => $preview_context ? [ 'id' => $preview_context_id, 'title' => $preview_context->post_title, 'type' => $preview_context->post_type ] : null,
                'disableGoogleFonts' => \NyxonnBuilder\Performance_Settings::google_fonts_disabled(),
                'customFonts' => array_values( array_filter( array_map( static function ( $font ) {
                    return is_array( $font ) ? sanitize_text_field( $font['family'] ?? '' ) : '';
                }, \NyxonnBuilder\Assets_Manager::get_fonts() ) ) ),
                'builderVersion' => (string) max(
                    filemtime( NYXONN_BUILDER_PLUGIN_DIR . 'assets/js/builder/app.js' ),
                    filemtime( NYXONN_BUILDER_PLUGIN_DIR . 'assets/js/builder/NxApp.js' ),
                    filemtime( NYXONN_BUILDER_PLUGIN_DIR . 'assets/js/builder/components/Canvas.js' ),
                    filemtime( NYXONN_BUILDER_PLUGIN_DIR . 'assets/js/builder/components/Sidebar.js' ),
                    filemtime( NYXONN_BUILDER_PLUGIN_DIR . 'assets/js/builder/components/Toolbar.js' ),
                    filemtime( NYXONN_BUILDER_PLUGIN_DIR . 'assets/js/builder/components/SettingsPanel.js' ),
                    filemtime( NYXONN_BUILDER_PLUGIN_DIR . 'assets/js/builder/core/DynamicModel.js' ),
                    filemtime( NYXONN_BUILDER_PLUGIN_DIR . 'assets/js/builder/utils/fontStore.js' )
                ),
            ]
        );

        // Output the root container
        ?>
        <div style="margin: 0; padding: 0; background: #fff;">
            <?php if ( $is_template_post ) :
                $context_search = isset( $_GET['nx_context_search'] ) ? sanitize_text_field( wp_unslash( $_GET['nx_context_search'] ) ) : '';
                $context_query = new \WP_Query( [ 'post_type' => [ 'page', 'post' ], 'post_status' => 'publish', 'posts_per_page' => 20, 's' => $context_search, 'orderby' => 'modified', 'order' => 'DESC', 'no_found_rows' => true ] );
                ?>
                <form method="get" class="nx-builder-preview-context" style="padding:10px 16px;background:#f8fafc;border-bottom:1px solid #e5e7eb;display:flex;align-items:center;gap:8px;flex-wrap:wrap;">
                    <input type="hidden" name="page" value="nyxonn-builder-editor" /><input type="hidden" name="post_id" value="<?php echo esc_attr( $post_id ); ?>" />
                    <label for="nx-context-search"><strong><?php esc_html_e( 'Preview using:', 'nyxonn-builder' ); ?></strong></label>
                    <input id="nx-context-search" type="search" name="nx_context_search" value="<?php echo esc_attr( $context_search ); ?>" placeholder="<?php esc_attr_e( 'Search Pages or Posts', 'nyxonn-builder' ); ?>" />
                    <select name="nx_preview_post_id" aria-label="<?php esc_attr_e( 'Preview context', 'nyxonn-builder' ); ?>">
                        <option value="0"><?php esc_html_e( 'Automatic context', 'nyxonn-builder' ); ?></option>
                        <?php if ( $preview_context && ! in_array( $preview_context, $context_query->posts, true ) ) : ?><option value="<?php echo esc_attr( $preview_context_id ); ?>" selected><?php echo esc_html( $preview_context->post_title ); ?></option><?php endif; ?>
                        <?php foreach ( $context_query->posts as $candidate ) : if ( ! current_user_can( 'read_post', $candidate->ID ) && ! current_user_can( 'edit_post', $candidate->ID ) ) continue; ?><option value="<?php echo esc_attr( $candidate->ID ); ?>" <?php selected( $preview_context_id, $candidate->ID ); ?>><?php echo esc_html( sprintf( '%s (%s)', $candidate->post_title ?: __( '(no title)', 'nyxonn-builder' ), $candidate->post_type ) ); ?></option><?php endforeach; ?>
                    </select>
                    <button type="submit" class="button"><?php esc_html_e( 'Apply Preview Context', 'nyxonn-builder' ); ?></button>
                    <span style="color:#667085;"><?php esc_html_e( 'Reloads preview data only; layout and conditions are unchanged.', 'nyxonn-builder' ); ?></span>
                </form>
            <?php endif; ?>
            <?php if ( $show_assigned_templates ) : ?>
                <?php if ( $assigned_header || $assigned_footer ) : ?>
                    <div style="padding:10px 16px;background:#f8fafc;border-bottom:1px solid #e5e7eb;display:flex;gap:10px;flex-wrap:wrap;">
                        <?php if ( $assigned_header ) : ?>
                            <?php $header_rules = \NyxonnBuilder\Template_Manager::get_template_rules( $assigned_header->ID ); ?>
                            <div style="padding:8px 12px;border:1px solid #c7d2fe;background:#eef2ff;border-radius:999px;">
                                Header: <strong><?php echo esc_html( $assigned_header->post_title ); ?></strong>
                                <span style="color:#4338ca;">(<?php echo esc_html( \NyxonnBuilder\Template_Manager::get_rules_summary( $header_rules ) ); ?>)</span>
                                <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . $assigned_header->ID ) ); ?>" style="margin-left:8px;">Edit</a>
                            </div>
                        <?php endif; ?>
                        <?php if ( $assigned_footer ) : ?>
                            <?php $footer_rules = \NyxonnBuilder\Template_Manager::get_template_rules( $assigned_footer->ID ); ?>
                            <div style="padding:8px 12px;border:1px solid #bbf7d0;background:#f0fdf4;border-radius:999px;">
                                Footer: <strong><?php echo esc_html( $assigned_footer->post_title ); ?></strong>
                                <span style="color:#15803d;">(<?php echo esc_html( \NyxonnBuilder\Template_Manager::get_rules_summary( $footer_rules ) ); ?>)</span>
                                <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . $assigned_footer->ID ) ); ?>" style="margin-left:8px;">Edit</a>
                            </div>
                        <?php endif; ?>
                    </div>
                <?php endif; ?>
            <?php endif; ?>
            <div id="nx-builder-root"
                 data-post-id="<?php echo esc_attr( $post_id ); ?>"
                 data-layout-b64="<?php echo esc_attr( $data_b64 ); ?>">
                <div style="padding: 20px; text-align: center; color: #666; font-family: sans-serif;">
                    Loading Nyxonn Builder... Please wait.
                </div>
            </div>
        </div>
        <?php
    }

    private static function resolve_template_post( $template_type ) {
        if ( ! class_exists( '\NyxonnBuilder\Template_Manager' ) ) {
            return 0;
        }

        $allowed = array_keys( \NyxonnBuilder\Template_Manager::get_template_types() );
        if ( ! in_array( $template_type, $allowed, true ) ) {
            return 0;
        }

        $existing = get_posts( [
            'post_type'      => \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE,
            'posts_per_page' => 1,
            'meta_key'       => \NyxonnBuilder\Template_Manager::TEMPLATE_TYPE_META,
            'meta_value'     => $template_type,
        ] );

        if ( ! empty( $existing ) ) {
            return $existing[0]->ID;
        }

        $title = ucfirst( $template_type ) . ' Template';
        $post_id = wp_insert_post( [
            'post_type'   => \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE,
            'post_title'  => $title,
            'post_status' => 'publish',
        ] );

        if ( $post_id ) {
            update_post_meta( $post_id, \NyxonnBuilder\Template_Manager::TEMPLATE_TYPE_META, $template_type );
        }

        return $post_id ?: 0;
    }

    public static function handle_theme_builder_actions() {
        if ( ! is_admin() || ! current_user_can( 'manage_options' ) ) {
            return;
        }

        if ( wp_doing_ajax() ) {
            return;
        }

        if ( ! isset( $_POST['nyxonn_builder_theme_builder_action'] ) ) {
            return;
        }

        $action = sanitize_text_field( wp_unslash( $_POST['nyxonn_builder_theme_builder_action'] ) );

        if ( 'create_template' === $action ) {
            check_admin_referer( 'nyxonn_builder_create_template', 'nyxonn_builder_create_template_nonce' );

            $type = isset( $_POST['template_type'] ) ? sanitize_text_field( wp_unslash( $_POST['template_type'] ) ) : 'header';
            $name = isset( $_POST['template_name'] ) ? sanitize_text_field( wp_unslash( $_POST['template_name'] ) ) : '';

            // Only header and footer templates are currently consumed by the frontend
            // resolver. Other nx_template records belong to the reusable builder library.
            $allowed = [ 'header', 'footer' ];
            if ( ! in_array( $type, $allowed, true ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=invalid_type' ) );
                exit;
            }

            if ( '' === $name ) {
                $label_map = \NyxonnBuilder\Template_Manager::get_template_types();
                $name = ( $label_map[ $type ] ?? ucfirst( $type ) ) . ' Template';
            }

            $rules = self::get_default_template_rules( $type );
            $post_id = wp_insert_post( [
                'post_type'   => \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE,
                'post_title'  => $name,
                'post_status' => 'publish',
            ] );

            if ( is_wp_error( $post_id ) || ! $post_id ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=create_failed' ) );
                exit;
            }

            \NyxonnBuilder\Template_Manager::update_template_rules( $post_id, $type, $rules );

            wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . intval( $post_id ) ) );
            exit;
        }

        if ( 'save_conditions' === $action ) {
            check_admin_referer( 'nyxonn_builder_save_conditions', 'nyxonn_builder_save_conditions_nonce' );
            if ( ! Feature_Registry::is_available( 'theme_builder_advanced' ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&locked=pro' ) );
                exit;
            }
            $template_id = isset( $_POST['template_id'] ) ? intval( wp_unslash( $_POST['template_id'] ) ) : 0;
            if ( ! $template_id || ! current_user_can( 'edit_post', $template_id ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=invalid_template' ) );
                exit;
            }

            $type = \NyxonnBuilder\Template_Manager::get_template_type( $template_id );
            if ( ! in_array( $type, [ 'header', 'footer' ], true ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=conditions_unsupported' ) );
                exit;
            }
            if ( self::is_protected_default_template( $template_id, $type ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&locked=1' ) );
                exit;
            }
            $result = \NyxonnBuilder\Template_Manager::update_template_rules( $template_id, $type, self::get_submitted_template_rules() );
            if ( is_wp_error( $result ) ) {
                wp_safe_redirect( add_query_arg( 'condition_error', $result->get_error_code(), admin_url( 'admin.php?page=nyxonn-builder-template-conditions&template_id=' . $template_id ) ) );
                exit;
            }
            wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-template-conditions&template_id=' . $template_id . '&updated=1' ) );
            exit;
        }

        if ( 'delete_template' === $action ) {
            check_admin_referer( 'nyxonn_builder_delete_template', 'nyxonn_builder_delete_template_nonce' );

            $template_id = isset( $_POST['template_id'] ) ? intval( wp_unslash( $_POST['template_id'] ) ) : 0;
            $redirect_to = isset( $_POST['redirect_to'] ) ? esc_url_raw( wp_unslash( $_POST['redirect_to'] ) ) : admin_url( 'admin.php?page=nyxonn-builder-theme-builder' );

            if ( ! $template_id || ! current_user_can( 'delete_post', $template_id ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=invalid_template' ) );
                exit;
            }

            $template = get_post( $template_id );
            if ( ! $template || \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE !== $template->post_type ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=invalid_template' ) );
                exit;
            }

            if ( self::is_protected_default_template( $template_id ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&locked=1' ) );
                exit;
            }

            wp_trash_post( $template_id );

            $redirect_to = add_query_arg(
                [
                    'deleted' => 1,
                    'item'    => rawurlencode( $template->post_title ),
                ],
                $redirect_to
            );

            wp_safe_redirect( $redirect_to );
            exit;
        }

        if ( 'clear_template_content' === $action ) {
            check_admin_referer( 'nyxonn_builder_clear_template_content', 'nyxonn_builder_clear_template_content_nonce' );

            $template_id = isset( $_POST['template_id'] ) ? intval( wp_unslash( $_POST['template_id'] ) ) : 0;
            $redirect_to = isset( $_POST['redirect_to'] ) ? esc_url_raw( wp_unslash( $_POST['redirect_to'] ) ) : admin_url( 'admin.php?page=nyxonn-builder-theme-builder' );

            if ( ! $template_id || ! current_user_can( 'edit_post', $template_id ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=invalid_template' ) );
                exit;
            }

            $template = get_post( $template_id );
            if ( ! $template || \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE !== $template->post_type ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=invalid_template' ) );
                exit;
            }

            if ( ! self::is_protected_default_template( $template_id ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=invalid_template' ) );
                exit;
            }

            self::clear_template_layout( $template_id );

            $redirect_to = add_query_arg( 'content_cleared', 1, $redirect_to );
            wp_safe_redirect( $redirect_to );
            exit;
        }

        if ( 'restore_template' === $action ) {
            check_admin_referer( 'nyxonn_builder_restore_template', 'nyxonn_builder_restore_template_nonce' );

            $template_id = isset( $_POST['template_id'] ) ? intval( wp_unslash( $_POST['template_id'] ) ) : 0;
            $redirect_to = isset( $_POST['redirect_to'] ) ? esc_url_raw( wp_unslash( $_POST['redirect_to'] ) ) : admin_url( 'admin.php?page=nyxonn-builder-templates' );

            if ( ! $template_id || ! current_user_can( 'delete_post', $template_id ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-templates&status=trash&error=invalid_template' ) );
                exit;
            }

            $template = get_post( $template_id );
            if ( ! $template || \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE !== $template->post_type ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-templates&status=trash&error=invalid_template' ) );
                exit;
            }

            $restored = wp_untrash_post( $template_id );

            if ( false === $restored ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-templates&status=trash&error=restore_failed' ) );
                exit;
            }

            $restored_template = get_post( $template_id );
            if ( $restored_template && 'publish' !== $restored_template->post_status ) {
                wp_update_post( [
                    'ID'          => $template_id,
                    'post_status' => 'publish',
                ] );
            }

            $redirect_to = add_query_arg( 'restored', 1, $redirect_to );

            wp_safe_redirect( $redirect_to );
            exit;
        }

        if ( 'delete_template_permanently' === $action ) {
            check_admin_referer( 'nyxonn_builder_delete_template_permanently', 'nyxonn_builder_delete_template_permanently_nonce' );

            $template_id = isset( $_POST['template_id'] ) ? intval( wp_unslash( $_POST['template_id'] ) ) : 0;
            $redirect_to = isset( $_POST['redirect_to'] ) ? esc_url_raw( wp_unslash( $_POST['redirect_to'] ) ) : admin_url( 'admin.php?page=nyxonn-builder-templates&status=trash' );

            if ( ! $template_id || ! current_user_can( 'delete_post', $template_id ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-templates&status=trash&error=invalid_template' ) );
                exit;
            }

            $template = get_post( $template_id );
            if ( ! $template || \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE !== $template->post_type ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-templates&status=trash&error=invalid_template' ) );
                exit;
            }

            wp_delete_post( $template_id, true );

            $redirect_to = add_query_arg( 'permanently_deleted', 1, $redirect_to );

            wp_safe_redirect( $redirect_to );
            exit;
        }

        if ( 'duplicate_template' === $action ) {
            check_admin_referer( 'nyxonn_builder_duplicate_template', 'nyxonn_builder_duplicate_template_nonce' );
            $template_id = isset( $_POST['template_id'] ) ? absint( wp_unslash( $_POST['template_id'] ) ) : 0;
            $template = $template_id ? get_post( $template_id ) : null;
            $type = $template ? \NyxonnBuilder\Template_Manager::get_template_type( $template_id ) : '';
            if ( ! $template || \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE !== $template->post_type || ! in_array( $type, [ 'header', 'footer' ], true ) || ! current_user_can( 'edit_post', $template_id ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=invalid_template' ) );
                exit;
            }
            $copy_id = wp_insert_post( [ 'post_type' => \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE, 'post_status' => 'draft', 'post_title' => sprintf( /* translators: %s: source template title. */ __( '%s (Copy)', 'nyxonn-builder' ), $template->post_title ) ], true );
            if ( is_wp_error( $copy_id ) ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=duplicate_failed' ) );
                exit;
            }
            $stored = \NyxonnBuilder\Save::store_canonical_layout( $copy_id, \NyxonnBuilder\Save::get_layout_for_post( $template_id ) );
            if ( is_wp_error( $stored ) ) {
                wp_delete_post( $copy_id, true );
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=duplicate_failed' ) );
                exit;
            }
            foreach ( [ '_nyxonn_builder_page_custom_css', '_nyxonn_builder_page_css_enabled' ] as $meta_key ) {
                if ( metadata_exists( 'post', $template_id, $meta_key ) ) update_post_meta( $copy_id, $meta_key, get_post_meta( $template_id, $meta_key, true ) );
            }
            update_post_meta( $copy_id, \NyxonnBuilder\Template_Manager::TEMPLATE_TYPE_META, $type );
            update_post_meta( $copy_id, \NyxonnBuilder\Template_Manager::TEMPLATE_RULES_META, [ 'version' => 2, 'priority' => 0, 'conditions' => [] ] );
            wp_safe_redirect( add_query_arg( 'duplicated', 1, admin_url( 'admin.php?page=nyxonn-builder-theme-builder' ) ) );
            exit;
        }
    }

    public static function ajax_save_template_conditions() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_send_json_error( [ 'message' => __( 'Unauthorized', 'nyxonn-builder' ) ], 403 );
        }
        if ( ! Feature_Registry::is_available( 'theme_builder_advanced' ) ) {
            wp_send_json_error( [ 'code' => 'nyxonn_builder_pro_required', 'message' => __( 'Nyxonn Pro is required to edit advanced template conditions. Existing assignments are preserved.', 'nyxonn-builder' ) ], 403 );
        }

        $template_id = isset( $_POST['template_id'] ) ? intval( wp_unslash( $_POST['template_id'] ) ) : 0;
        $nonce = isset( $_POST['nyxonn_builder_save_conditions_nonce'] ) ? sanitize_text_field( wp_unslash( $_POST['nyxonn_builder_save_conditions_nonce'] ) ) : '';
        if ( ! $template_id || ! wp_verify_nonce( $nonce, 'nyxonn_builder_save_conditions' ) ) {
            wp_send_json_error( [ 'message' => __( 'Invalid request.', 'nyxonn-builder' ) ], 400 );
        }

        $type = \NyxonnBuilder\Template_Manager::get_template_type( $template_id );
        if ( ! in_array( $type, [ 'header', 'footer' ], true ) || ! current_user_can( 'edit_post', $template_id ) ) {
            wp_send_json_error( [ 'message' => __( 'Conditions are not supported for this template.', 'nyxonn-builder' ) ], 400 );
        }
        if ( self::is_protected_default_template( $template_id, $type ) ) {
            wp_send_json_error( [ 'message' => __( 'Default global header/footer conditions cannot be changed.', 'nyxonn-builder' ) ], 400 );
        }
        $result = \NyxonnBuilder\Template_Manager::update_template_rules( $template_id, $type, self::get_submitted_template_rules() );
        if ( is_wp_error( $result ) ) wp_send_json_error( [ 'message' => $result->get_error_message() ], 400 );
        $normalized = \NyxonnBuilder\Template_Manager::get_template_rules( $template_id );

        wp_send_json_success( [
            'summary'   => \NyxonnBuilder\Template_Manager::get_rules_summary( $normalized ),
            'is_global' => ! empty( $normalized['all'] ),
        ] );
    }

    private static function get_default_template_rules( $type ) {
        return [ 'version' => 2, 'priority' => 0, 'conditions' => [ [ 'mode' => 'include', 'target' => 'entire_site' ] ] ];
    }

    private static function get_submitted_template_rules() {
        return [
            'version'    => 2,
            'priority'   => isset( $_POST['nyxonn_builder_template_priority'] ) ? intval( wp_unslash( $_POST['nyxonn_builder_template_priority'] ) ) : 0,
            'conditions' => isset( $_POST['nx_conditions'] ) && is_array( $_POST['nx_conditions'] ) ? wp_unslash( $_POST['nx_conditions'] ) : [],
        ];
    }

    private static function merge_template_rules( $defaults, $submitted ) {
        $defaults = is_array( $defaults ) ? $defaults : [];
        $submitted = is_array( $submitted ) ? $submitted : [];

        return [
            'all'        => isset( $submitted['all'] ) ? (bool) $submitted['all'] : (bool) ( $defaults['all'] ?? false ),
            'include'    => ! empty( $submitted['include'] ) ? array_values( $submitted['include'] ) : ( $defaults['include'] ?? [] ),
            'exclude'    => ! empty( $submitted['exclude'] ) ? array_values( $submitted['exclude'] ) : ( $defaults['exclude'] ?? [] ),
            'post_types' => ! empty( $submitted['post_types'] ) ? array_values( $submitted['post_types'] ) : ( $defaults['post_types'] ?? [] ),
            'categories' => ! empty( $submitted['categories'] ) ? array_values( $submitted['categories'] ) : ( $defaults['categories'] ?? [] ),
            'contexts'   => ! empty( $submitted['contexts'] ) ? array_values( $submitted['contexts'] ) : ( $defaults['contexts'] ?? [] ),
        ];
    }

    private static function is_protected_default_template( $template_id, $type = '' ) {
        $template_id = intval( $template_id );
        if ( ! $template_id ) {
            return false;
        }

        if ( '' === $type ) {
            $type = \NyxonnBuilder\Template_Manager::get_template_type( $template_id );
        }

        if ( ! in_array( $type, [ 'header', 'footer' ], true ) ) {
            return false;
        }

        $rules = \NyxonnBuilder\Template_Manager::get_template_rules( $template_id );

        return \NyxonnBuilder\Template_Manager::is_locked_global_template( $template_id, $type, $rules );
    }

    private static function clear_template_layout( $template_id ) {
        \NyxonnBuilder\Save::store_canonical_layout( $template_id, [] );
        delete_post_meta( $template_id, '_nyxonn_builder_layout' );
    }

    public static function render_template_conditions() {
        $template_id = isset( $_GET['template_id'] ) ? intval( wp_unslash( $_GET['template_id'] ) ) : 0;
        $template = $template_id ? get_post( $template_id ) : null;

        if ( ! $template || \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE !== $template->post_type ) {
            wp_die( esc_html__( 'Template not found.', 'nyxonn-builder' ) );
        }

        if ( ! current_user_can( 'edit_post', $template_id ) ) {
            wp_die( esc_html__( 'You do not have permission to edit this template.', 'nyxonn-builder' ) );
        }

        $type = \NyxonnBuilder\Template_Manager::get_template_type( $template_id );
        if ( ! in_array( $type, [ 'header', 'footer' ], true ) ) {
            wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-theme-builder&error=conditions_unsupported' ) );
            exit;
        }
        $rules = \NyxonnBuilder\Template_Manager::get_template_rules( $template_id );
        $is_protected_default = self::is_protected_default_template( $template_id, $type );
        $conditions_available = Feature_Registry::is_available( 'theme_builder_advanced' );
        self::render_admin_shell_start(
            'nyxonn-builder-theme-builder',
            __( 'Template Conditions', 'nyxonn-builder' ),
            sprintf( /* translators: %s: template title. */ __( 'Control where ÃƒÆ’Ã‚Â¢ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬Ãƒâ€¦Ã¢â‚¬Å“%sÃƒÆ’Ã‚Â¢ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬Ãƒâ€šÃ‚Â is used.', 'nyxonn-builder' ), $template->post_title )
        );
        ?>
            <?php if ( isset( $_GET['updated'] ) && '1' === sanitize_text_field( wp_unslash( $_GET['updated'] ) ) ) : ?>
                <div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success"><?php esc_html_e( 'Conditions saved.', 'nyxonn-builder' ); ?></div>
            <?php endif; ?>
            <?php if ( isset( $_GET['condition_error'] ) ) : ?>
                <div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--error"><?php esc_html_e( 'Conditions were not saved. Complete every row and include at least one valid Include condition.', 'nyxonn-builder' ); ?></div>
            <?php endif; ?>
            <?php if ( $is_protected_default ) : ?>
                <div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--info"><?php esc_html_e( 'This is the required global template for its area, so its conditions are locked.', 'nyxonn-builder' ); ?></div>
            <?php endif; ?>
            <?php if ( ! $conditions_available ) : ?>
                <section class="nyxonn-builder-admin-card nx-feature-gate-admin"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Advanced Conditions', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php echo esc_html( \NyxonnBuilder\Template_Manager::get_rules_summary( $rules ) ); ?></p></div><span class="nyxonn-builder-admin-badge nyxonn-builder-pro-badge">PRO</span></div><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--info"><?php esc_html_e( 'Saved advanced conditions are preserved but remain inactive until Nyxonn Pro is active. Basic global Header and Footer assignments continue to work.', 'nyxonn-builder' ); ?></div><a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-theme-builder' ) ); ?>" class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary"><?php esc_html_e( 'Back to Theme Builder', 'nyxonn-builder' ); ?></a></section>
                <?php self::render_admin_shell_end(); return; ?>
            <?php endif; ?>
            <form class="nyxonn-builder-admin-card nx-template-conditions" method="post" action="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-template-conditions&template_id=' . $template_id ) ); ?>">
                <?php wp_nonce_field( 'nyxonn_builder_save_conditions', 'nyxonn_builder_save_conditions_nonce' ); ?>
                <input type="hidden" name="nyxonn_builder_theme_builder_action" value="save_conditions" />
                <input type="hidden" name="template_id" value="<?php echo esc_attr( $template_id ); ?>" />
                <input type="hidden" name="nx_template_type" value="<?php echo esc_attr( $type ); ?>" />
                <div class="nx-template-condition-fields">
                    <?php \NyxonnBuilder\Template_Manager::render_rules_fields( $type, $rules, $template_id, [ 'show_type_selector' => false ] ); ?>
                </div>
                <div class="nyxonn-builder-admin-actions">
                    <?php if ( ! $is_protected_default ) : ?>
                        <button type="submit" class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary"><?php esc_html_e( 'Save Conditions', 'nyxonn-builder' ); ?></button>
                    <?php endif; ?>
                    <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-theme-builder' ) ); ?>" class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary"><?php esc_html_e( 'Back to Theme Builder', 'nyxonn-builder' ); ?></a>
                    <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . $template_id ) ); ?>" class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary"><?php esc_html_e( 'Edit with Nyxonn', 'nyxonn-builder' ); ?></a>
                </div>
            </form>
        <?php
        self::render_admin_shell_end();
    }

    public static function render_templates_list() {
        self::render_theme_builder();
        return;
        $status = isset( $_GET['status'] ) ? sanitize_key( wp_unslash( $_GET['status'] ) ) : 'publish';
        $status = in_array( $status, [ 'publish', 'trash' ], true ) ? $status : 'publish';
        $list_url = admin_url( 'admin.php?page=nyxonn-builder-templates' );
        $active_url = 'trash' === $status ? add_query_arg( 'status', 'trash', $list_url ) : $list_url;
        $templates = get_posts( [
            'post_type'      => \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE,
            'post_status'    => $status,
            'posts_per_page' => -1,
            'orderby'        => 'modified',
            'order'          => 'DESC',
        ] );
        $trash_total = self::count_theme_templates_by_status( 'trash' );
        ?>
        <div class="wrap nyxonn-builder-admin-page">
            <h1><?php esc_html_e( 'All Templates', 'nyxonn-builder' ); ?></h1>
            <?php if ( isset( $_GET['deleted'] ) && '1' === sanitize_text_field( wp_unslash( $_GET['deleted'] ) ) ) : ?>
                <div class="notice notice-success is-dismissible">
                    <p><?php esc_html_e( 'Template moved to Trash.', 'nyxonn-builder' ); ?></p>
                </div>
            <?php endif; ?>
            <?php if ( isset( $_GET['locked'] ) && '1' === sanitize_text_field( wp_unslash( $_GET['locked'] ) ) ) : ?>
                <div class="notice notice-warning is-dismissible">
                    <p><?php esc_html_e( 'Default global header/footer cannot be deleted or have its conditions changed.', 'nyxonn-builder' ); ?></p>
                </div>
            <?php endif; ?>
            <?php if ( isset( $_GET['content_cleared'] ) && '1' === sanitize_text_field( wp_unslash( $_GET['content_cleared'] ) ) ) : ?>
                <div class="notice notice-success is-dismissible">
                    <p><?php esc_html_e( 'Template content cleared.', 'nyxonn-builder' ); ?></p>
                </div>
            <?php endif; ?>
            <?php if ( isset( $_GET['restored'] ) && '1' === sanitize_text_field( wp_unslash( $_GET['restored'] ) ) ) : ?>
                <div class="notice notice-success is-dismissible">
                    <p><?php esc_html_e( 'Template restored.', 'nyxonn-builder' ); ?></p>
                </div>
            <?php endif; ?>
            <?php if ( isset( $_GET['permanently_deleted'] ) && '1' === sanitize_text_field( wp_unslash( $_GET['permanently_deleted'] ) ) ) : ?>
                <div class="notice notice-success is-dismissible">
                    <p><?php esc_html_e( 'Template deleted permanently.', 'nyxonn-builder' ); ?></p>
                </div>
            <?php endif; ?>
            <p style="margin:16px 0;display:flex;gap:10px;flex-wrap:wrap;">
                <a href="<?php echo esc_url( $list_url ); ?>" class="button <?php echo 'publish' === $status ? 'button-primary' : ''; ?>"><?php esc_html_e( 'Active Templates', 'nyxonn-builder' ); ?></a>
                <a href="<?php echo esc_url( add_query_arg( 'status', 'trash', $list_url ) ); ?>" class="button <?php echo 'trash' === $status ? 'button-primary' : ''; ?>">
                    <?php
                    /* translators: %d: number of templates in trash. */
                    echo esc_html( sprintf( /* translators: %d: number of trashed templates. */ __( 'Trash (%d)', 'nyxonn-builder' ), $trash_total ) );
                    ?>
                </a>
            </p>
            <table class="wp-list-table widefat fixed striped">
                <thead>
                    <tr>
                        <th><?php esc_html_e( 'Template', 'nyxonn-builder' ); ?></th>
                        <th><?php esc_html_e( 'Type', 'nyxonn-builder' ); ?></th>
                        <th><?php esc_html_e( 'Conditions', 'nyxonn-builder' ); ?></th>
                        <th><?php esc_html_e( 'Actions', 'nyxonn-builder' ); ?></th>
                    </tr>
                </thead>
                <tbody>
                <?php foreach ( $templates as $template ) : ?>
                    <?php $rules = \NyxonnBuilder\Template_Manager::get_template_rules( $template->ID ); ?>
                    <?php $is_protected_default = self::is_protected_default_template( $template->ID ); ?>
                    <tr>
                        <td><strong><?php echo esc_html( $template->post_title ); ?></strong></td>
                        <td><?php echo esc_html( \NyxonnBuilder\Template_Manager::get_template_type( $template->ID ) ); ?></td>
                        <td><?php echo esc_html( \NyxonnBuilder\Template_Manager::get_rules_summary( $rules ) ); ?></td>
                        <td>
                            <?php if ( 'trash' !== $status ) : ?>
                                <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . $template->ID ) ); ?>" class="button button-primary"><?php esc_html_e( 'Edit', 'nyxonn-builder' ); ?></a>
                                <?php if ( ! $is_protected_default ) : ?>
                                    <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-template-conditions&template_id=' . $template->ID ) ); ?>" class="button"><?php esc_html_e( 'Conditions', 'nyxonn-builder' ); ?></a>
                                    <form method="post" action="<?php echo esc_url( $active_url ); ?>" style="display:inline-block;margin-left:4px;" data-nx-confirm="<?php esc_attr_e( 'Move this template to Trash?', 'nyxonn-builder' ); ?>">
                                        <?php wp_nonce_field( 'nyxonn_builder_delete_template', 'nyxonn_builder_delete_template_nonce' ); ?>
                                        <input type="hidden" name="nyxonn_builder_theme_builder_action" value="delete_template" />
                                        <input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" />
                                        <input type="hidden" name="redirect_to" value="<?php echo esc_url( $list_url ); ?>" />
                                        <button type="submit" class="button button-link-delete"><?php esc_html_e( 'Delete', 'nyxonn-builder' ); ?></button>
                                    </form>
                                <?php else : ?>
                                    <span class="button disabled" aria-disabled="true"><?php esc_html_e( 'Conditions Locked', 'nyxonn-builder' ); ?></span>
                                    <span class="button disabled" aria-disabled="true"><?php esc_html_e( 'Delete Locked', 'nyxonn-builder' ); ?></span>
                                    <form method="post" action="<?php echo esc_url( $active_url ); ?>" style="display:inline-block;margin-left:4px;" data-nx-confirm="<?php esc_attr_e( 'Clear all content from this default template?', 'nyxonn-builder' ); ?>">
                                        <?php wp_nonce_field( 'nyxonn_builder_clear_template_content', 'nyxonn_builder_clear_template_content_nonce' ); ?>
                                        <input type="hidden" name="nyxonn_builder_theme_builder_action" value="clear_template_content" />
                                        <input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" />
                                        <input type="hidden" name="redirect_to" value="<?php echo esc_url( $list_url ); ?>" />
                                        <button type="submit" class="button"><?php esc_html_e( 'Clear Content', 'nyxonn-builder' ); ?></button>
                                    </form>
                                <?php endif; ?>
                            <?php else : ?>
                                <form method="post" action="<?php echo esc_url( $active_url ); ?>" style="display:inline-block;" data-nx-confirm="<?php esc_attr_e( 'Restore this template?', 'nyxonn-builder' ); ?>">
                                    <?php wp_nonce_field( 'nyxonn_builder_restore_template', 'nyxonn_builder_restore_template_nonce' ); ?>
                                    <input type="hidden" name="nyxonn_builder_theme_builder_action" value="restore_template" />
                                    <input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" />
                                    <input type="hidden" name="redirect_to" value="<?php echo esc_url( $list_url ); ?>" />
                                    <button type="submit" class="button"><?php esc_html_e( 'Restore', 'nyxonn-builder' ); ?></button>
                                </form>
                                <form method="post" action="<?php echo esc_url( $active_url ); ?>" style="display:inline-block;margin-left:4px;" data-nx-confirm="<?php esc_attr_e( 'Delete this template permanently?', 'nyxonn-builder' ); ?>">
                                    <?php wp_nonce_field( 'nyxonn_builder_delete_template_permanently', 'nyxonn_builder_delete_template_permanently_nonce' ); ?>
                                    <input type="hidden" name="nyxonn_builder_theme_builder_action" value="delete_template_permanently" />
                                    <input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" />
                                    <input type="hidden" name="redirect_to" value="<?php echo esc_url( add_query_arg( 'status', 'trash', $list_url ) ); ?>" />
                                    <button type="submit" class="button button-link-delete"><?php esc_html_e( 'Delete Permanently', 'nyxonn-builder' ); ?></button>
                                </form>
                            <?php endif; ?>
                        </td>
                    </tr>
                <?php endforeach; ?>
                </tbody>
            </table>
        </div>
        <?php
    }

    public static function handle_create_builder_page() {
        if ( 'POST' !== ( $_SERVER['REQUEST_METHOD'] ?? '' ) ) {
            wp_die( esc_html__( 'Page creation requires a POST request.', 'nyxonn-builder' ), esc_html__( 'Invalid Request', 'nyxonn-builder' ), [ 'response' => 405 ] );
        }

        if ( ! \NyxonnBuilder\Role_Manager::can_use_builder() || ! current_user_can( 'edit_pages' ) ) {
            wp_die( esc_html__( 'You do not have permission to create a page with Nyxonn Builder.', 'nyxonn-builder' ), esc_html__( 'Permission Denied', 'nyxonn-builder' ), [ 'response' => 403 ] );
        }

        check_admin_referer( 'nyxonn_builder_create_page' );

        if ( ! Builder_Settings::is_post_type_enabled( 'page' ) ) {
            wp_die( esc_html__( 'Page creation is disabled in Nyxonn Builder settings.', 'nyxonn-builder' ), esc_html__( 'Page Creation Disabled', 'nyxonn-builder' ), [ 'response' => 403 ] );
        }

        $token = isset( $_POST['nyxonn_builder_create_token'] )
            ? sanitize_text_field( wp_unslash( $_POST['nyxonn_builder_create_token'] ) )
            : '';

        if ( ! preg_match( '/^[a-f0-9-]{36}$/i', $token ) ) {
            wp_die( esc_html__( 'The page creation request is invalid. Reload the dashboard and try again.', 'nyxonn-builder' ), esc_html__( 'Invalid Request', 'nyxonn-builder' ), [ 'response' => 400 ] );
        }

        // Claim this rendered form token atomically so a double-submit or concurrent
        // replay cannot create another draft. A fresh dashboard form gets a fresh token.
        $token_hash = hash( 'sha256', get_current_user_id() . '|' . $token );
        $request_key = 'nyxonn_builder_create_request_' . substr( $token_hash, 0, 40 );
        $claimed     = add_option( $request_key, 'processing', '', false );

        if ( ! $claimed ) {
            $previous_post_id = absint( get_option( $request_key, 0 ) );
            $previous_post    = $previous_post_id ? get_post( $previous_post_id ) : null;

            if ( $previous_post && 'page' === $previous_post->post_type && (int) $previous_post->post_author === get_current_user_id() ) {
                wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . $previous_post_id ) );
                exit;
            }

            wp_die( esc_html__( 'This page creation request is already being processed. Reload the dashboard before creating another page.', 'nyxonn-builder' ), esc_html__( 'Request Already Processed', 'nyxonn-builder' ), [ 'response' => 409 ] );
        }

        if ( ! wp_next_scheduled( 'nyxonn_builder_expire_create_request', [ $request_key ] ) ) {
            wp_schedule_single_event( time() + DAY_IN_SECONDS, 'nyxonn_builder_expire_create_request', [ $request_key ] );
        }

        $post_id = self::insert_builder_page();

        if ( ! $post_id ) {
            delete_option( $request_key );
            wp_die( esc_html__( 'The page could not be created.', 'nyxonn-builder' ), esc_html__( 'Page Creation Failed', 'nyxonn-builder' ), [ 'response' => 500 ] );
        }

        update_option( $request_key, (string) $post_id, false );
        wp_safe_redirect( admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . absint( $post_id ) ) );
        exit;
    }

    /** Remove an expired idempotency token created for a page request. */
    public static function expire_create_request( $request_key ) {
        if ( is_string( $request_key ) && preg_match( '/^nyxonn_builder_create_request_[a-f0-9]{40}$/', $request_key ) ) {
            delete_option( $request_key );
        }
    }

    private static function insert_builder_page() {
        if ( ! \NyxonnBuilder\Role_Manager::can_use_builder() || ! current_user_can( 'edit_pages' ) || ! Builder_Settings::is_post_type_enabled( 'page' ) ) {
            return 0;
        }

        $post_id = wp_insert_post( [
            'post_type'   => 'page',
            'post_title'  => __( 'New Nyxonn Builder Page', 'nyxonn-builder' ),
            'post_status' => 'draft',
        ], true );

        if ( is_wp_error( $post_id ) || ! $post_id ) {
            return 0;
        }

        update_post_meta( $post_id, '_nyxonn_builder_enabled', '1' );

        return intval( $post_id );
    }

    /**
     * Render Dashboard page
     */
    public static function render_dashboard() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to view this page.', 'nyxonn-builder' ) );
        }

        $recent_pages = self::get_recent_nyxonn_pages();
        $is_pro       = self::is_pro_extension_registered();
        $purchase_url = self::get_pro_purchase_url();
        $can_create_page = Builder_Settings::is_post_type_enabled( 'page' );

        self::render_admin_shell_start(
            'nx',
            __( 'Dashboard', 'nyxonn-builder' ),
            __( 'Manage your Nyxonn Builder builder and site design.', 'nyxonn-builder' )
        );
        ?>
        <div class="nyxonn-builder-admin-grid nyxonn-builder-admin-grid--dashboard">
            <div class="nyxonn-builder-admin-stack">
                <section class="nyxonn-builder-admin-card nyxonn-builder-admin-card--welcome" aria-labelledby="nx-welcome-title">
                    <div class="nyxonn-builder-admin-card__body">
                        <span class="nyxonn-builder-admin-eyebrow"><?php esc_html_e( 'Build faster', 'nyxonn-builder' ); ?></span>
                        <h2 id="nx-welcome-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Welcome to Nyxonn Builder', 'nyxonn-builder' ); ?></h2>
                        <p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Nyxonn Builder is a lightweight WordPress page builder for creating flexible, responsive layouts without unnecessary overhead.', 'nyxonn-builder' ); ?></p>
                        <div class="nyxonn-builder-admin-actions">
                            <?php if ( $can_create_page ) : ?><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>"><input type="hidden" name="action" value="nyxonn_builder_create_page" /><?php wp_nonce_field( 'nyxonn_builder_create_page' ); ?><input type="hidden" name="nyxonn_builder_create_token" value="<?php echo esc_attr( wp_generate_uuid4() ); ?>" /><button type="submit" class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary"><?php esc_html_e( 'Create New Page', 'nyxonn-builder' ); ?></button></form><?php endif; ?>
                            <a href="<?php echo esc_url( admin_url( 'edit.php?post_type=page' ) ); ?>" class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary"><?php esc_html_e( 'Open WordPress Pages', 'nyxonn-builder' ); ?></a>
                            <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-global-design' ) ); ?>" class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary"><?php esc_html_e( 'Global Design', 'nyxonn-builder' ); ?></a>
                        </div>
                    </div>
                </section>

                <section class="nyxonn-builder-admin-card" aria-labelledby="nx-recent-title">
                    <div class="nyxonn-builder-admin-card__header">
                        <div>
                            <h2 id="nx-recent-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Recent Nyxonn Pages', 'nyxonn-builder' ); ?></h2>
                            <p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Recently modified content with Nyxonn Builder enabled.', 'nyxonn-builder' ); ?></p>
                        </div>
                    </div>
                    <?php if ( $recent_pages ) : ?>
                        <ul class="nyxonn-builder-admin-list">
                            <?php foreach ( $recent_pages as $post ) : ?>
                                <?php
                                $post_type_object = get_post_type_object( $post->post_type );
                                $post_type_label  = $post_type_object ? $post_type_object->labels->singular_name : $post->post_type;
                                ?>
                                <li class="nyxonn-builder-admin-list__item">
                                    <div class="nyxonn-builder-admin-list__content">
                                        <strong><?php echo esc_html( get_the_title( $post ) ?: __( '(no title)', 'nyxonn-builder' ) ); ?></strong>
                                        <span><?php echo esc_html( $post_type_label ); ?></span>
                                    </div>
                                    <div class="nyxonn-builder-admin-list__actions">
                                        <?php if ( \NyxonnBuilder\Role_Manager::can_use_builder( $post->ID ) && Builder_Settings::can_open_builder( $post ) ) : ?>
                                            <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . intval( $post->ID ) ) ); ?>"><?php esc_html_e( 'Edit with Nyxonn', 'nyxonn-builder' ); ?></a>
                                            <?php $wordpress_edit_url = get_edit_post_link( $post->ID, 'raw' ); ?>
                                            <?php if ( $wordpress_edit_url ) : ?>
                                                <a href="<?php echo esc_url( $wordpress_edit_url ); ?>"><?php esc_html_e( 'WordPress Edit', 'nyxonn-builder' ); ?></a>
                                            <?php endif; ?>
                                        <?php endif; ?>
                                    </div>
                                </li>
                            <?php endforeach; ?>
                        </ul>
                    <?php else : ?>
                        <div class="nyxonn-builder-admin-empty-state">
                            <h3><?php esc_html_e( 'No Nyxonn pages yet', 'nyxonn-builder' ); ?></h3>
                            <p><?php esc_html_e( 'Create a page with Nyxonn Builder to see it here.', 'nyxonn-builder' ); ?></p>
                        </div>
                    <?php endif; ?>
                </section>

                <section class="nyxonn-builder-admin-card" aria-labelledby="nx-actions-title">
                    <div class="nyxonn-builder-admin-card__header">
                        <div>
                            <h2 id="nx-actions-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Quick Actions', 'nyxonn-builder' ); ?></h2>
                            <p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Jump directly to common Nyxonn Builder tasks.', 'nyxonn-builder' ); ?></p>
                        </div>
                    </div>
                    <div class="nyxonn-builder-admin-quick-links">
                        <?php if ( $can_create_page ) : ?><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>"><input type="hidden" name="action" value="nyxonn_builder_create_page" /><?php wp_nonce_field( 'nyxonn_builder_create_page' ); ?><input type="hidden" name="nyxonn_builder_create_token" value="<?php echo esc_attr( wp_generate_uuid4() ); ?>" /><button type="submit" class="button-link"><?php esc_html_e( 'Create Page', 'nyxonn-builder' ); ?></button></form><?php endif; ?>
                        <a href="<?php echo esc_url( admin_url( 'edit.php?post_type=page' ) ); ?>"><?php esc_html_e( 'View Pages', 'nyxonn-builder' ); ?></a>
                        <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-global-design' ) ); ?>"><?php esc_html_e( 'Global Design', 'nyxonn-builder' ); ?></a>
                        <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-theme-builder' ) ); ?>"><?php esc_html_e( 'Theme Builder', 'nyxonn-builder' ); ?></a>
                        <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-assets' ) ); ?>"><?php esc_html_e( 'Assets', 'nyxonn-builder' ); ?></a>
                    </div>
                </section>
            </div>

            <aside class="nyxonn-builder-admin-stack" aria-label="<?php esc_attr_e( 'Nyxonn Builder status', 'nyxonn-builder' ); ?>">
                <section class="nyxonn-builder-admin-card" aria-labelledby="nx-status-title">
                    <div class="nyxonn-builder-admin-card__header">
                        <h2 id="nx-status-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Builder Status', 'nyxonn-builder' ); ?></h2>
                        <span class="nyxonn-builder-admin-badge nyxonn-builder-admin-badge--success"><?php esc_html_e( 'Active', 'nyxonn-builder' ); ?></span>
                    </div>
                    <dl class="nyxonn-builder-admin-status-list">
                        <div><dt><?php esc_html_e( 'Nyxonn Builder', 'nyxonn-builder' ); ?></dt><dd><?php echo esc_html( NYXONN_BUILDER_VERSION ); ?></dd></div>
                        <div><dt><?php esc_html_e( 'Builder status', 'nyxonn-builder' ); ?></dt><dd><?php esc_html_e( 'Active', 'nyxonn-builder' ); ?></dd></div>
                        <div><dt><?php esc_html_e( 'Safe Mode', 'nyxonn-builder' ); ?></dt><dd><?php echo \NyxonnBuilder\Safe_Mode::is_enabled() ? '<span class="nyxonn-builder-admin-badge">' . esc_html__( 'Active', 'nyxonn-builder' ) . '</span>' : esc_html__( 'Inactive', 'nyxonn-builder' ); ?></dd></div>
                        <div><dt><?php esc_html_e( 'WordPress', 'nyxonn-builder' ); ?></dt><dd><?php echo esc_html( get_bloginfo( 'version' ) ); ?></dd></div>
                        <div><dt><?php esc_html_e( 'PHP', 'nyxonn-builder' ); ?></dt><dd><?php echo esc_html( PHP_VERSION ); ?></dd></div>
                        <div><dt><?php esc_html_e( 'Active theme', 'nyxonn-builder' ); ?></dt><dd><?php echo esc_html( wp_get_theme()->get( 'Name' ) ); ?></dd></div>
                        <div><dt><?php esc_html_e( 'Pro status', 'nyxonn-builder' ); ?></dt><dd><?php echo esc_html( $is_pro ? __( 'Pro Active', 'nyxonn-builder' ) : __( 'Free', 'nyxonn-builder' ) ); ?></dd></div>
                    </dl>
                </section>

                <section class="nyxonn-builder-admin-card" aria-labelledby="nx-performance-title">
                    <div class="nyxonn-builder-admin-card__header">
                        <h2 id="nx-performance-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Performance', 'nyxonn-builder' ); ?></h2>
                        <span class="nyxonn-builder-admin-badge nyxonn-builder-admin-badge--success"><?php esc_html_e( 'Active', 'nyxonn-builder' ); ?></span>
                    </div>
                    <p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Conditional frontend assets are active. Builder assets load on demand for Nyxonn-enabled content.', 'nyxonn-builder' ); ?></p>
                </section>

                <section class="nyxonn-builder-admin-card" aria-labelledby="nx-resources-title">
                    <div class="nyxonn-builder-admin-card__header">
                        <h2 id="nx-resources-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Support & Resources', 'nyxonn-builder' ); ?></h2>
                    </div>
                    <?php self::render_resource_links(); ?>
                </section>

                <?php if ( ! $is_pro ) : ?>
                    <section class="nyxonn-builder-admin-card nyxonn-builder-admin-card--upgrade" aria-labelledby="nx-upgrade-title">
                        <div class="nyxonn-builder-admin-card__header">
                            <h2 id="nx-upgrade-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Nyxonn Pro', 'nyxonn-builder' ); ?></h2>
                        </div>
                        <p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Extend the Free builder with the separately distributed Pro module package.', 'nyxonn-builder' ); ?></p>
                        <?php if ( $purchase_url ) : ?>
                            <a class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary" href="<?php echo esc_url( $purchase_url ); ?>" target="_blank" rel="noopener noreferrer"><?php esc_html_e( 'Upgrade to Pro', 'nyxonn-builder' ); ?></a>
                        <?php else : ?>
                            <p class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--info"><?php esc_html_e( 'The purchase link has not been configured.', 'nyxonn-builder' ); ?></p>
                            <span class="nyxonn-builder-admin-button nyxonn-builder-admin-button--disabled" aria-disabled="true"><?php esc_html_e( 'Upgrade Unavailable', 'nyxonn-builder' ); ?></span>
                        <?php endif; ?>
                    </section>
                <?php endif; ?>
            </aside>
        </div>
        <?php
        self::render_admin_shell_end();
    }

    /** Render real, site-wide Builder Settings. */
    public static function render_builder_settings() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to view this page.', 'nyxonn-builder' ) );
        }

        $supported    = Builder_Settings::get_supported_post_types();
        $enabled      = Builder_Settings::get_enabled_post_types();
        $global       = Global_Settings::get_settings();
        $content_width = $global['layout']['containerMaxWidth'] ?? Global_Settings::get_defaults()['layout']['containerMaxWidth'];
        $notice       = isset( $_GET['nyxonn_builder_notice'] ) ? sanitize_key( wp_unslash( $_GET['nyxonn_builder_notice'] ) ) : '';

        self::render_admin_shell_start(
            'nyxonn-builder-builder-settings',
            __( 'Builder Settings', 'nyxonn-builder' ),
            __( 'Configure how Nyxonn Builder works across your WordPress site.', 'nyxonn-builder' )
        );
        ?>
        <?php if ( 'saved' === $notice ) : ?>
            <div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success" role="status"><?php esc_html_e( 'Builder settings saved.', 'nyxonn-builder' ); ?></div>
        <?php elseif ( 'invalid_width' === $notice ) : ?>
            <div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--error" role="alert"><?php esc_html_e( 'Post types were saved, but content width must be between 320 and 2400 pixels.', 'nyxonn-builder' ); ?></div>
        <?php endif; ?>

        <form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" class="nyxonn-builder-admin-settings-form">
            <input type="hidden" name="action" value="nyxonn_builder_save_builder_settings" />
            <?php wp_nonce_field( 'nyxonn_builder_save_builder_settings' ); ?>

            <section class="nyxonn-builder-admin-card" aria-labelledby="nx-post-types-title">
                <div class="nyxonn-builder-admin-card__header">
                    <div>
                        <h2 id="nx-post-types-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Post Types', 'nyxonn-builder' ); ?></h2>
                        <p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Choose where new Nyxonn Builder editing is available. Disabling a type does not delete or stop rendering existing layouts.', 'nyxonn-builder' ); ?></p>
                    </div>
                </div>
                <div class="nyxonn-builder-admin-choice-grid">
                    <?php foreach ( $supported as $post_type => $object ) : ?>
                        <label class="nyxonn-builder-admin-choice">
                            <input type="checkbox" name="post_types[]" value="<?php echo esc_attr( $post_type ); ?>" <?php checked( in_array( $post_type, $enabled, true ) ); ?> />
                            <span><strong><?php echo esc_html( $object->labels->name ); ?></strong><small><?php echo esc_html( $post_type ); ?></small></span>
                        </label>
                    <?php endforeach; ?>
                </div>
            </section>

            <section class="nyxonn-builder-admin-card" aria-labelledby="nx-layout-defaults-title">
                <div class="nyxonn-builder-admin-card__header">
                    <div>
                        <h2 id="nx-layout-defaults-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Default Layout', 'nyxonn-builder' ); ?></h2>
                        <p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'These values are applied only when the builder creates a new row. Existing saved rows are not rewritten.', 'nyxonn-builder' ); ?></p>
                    </div>
                </div>
                <div class="nyxonn-builder-admin-form-grid">
                    <div class="nyxonn-builder-admin-field">
                        <label for="nx-container-max-width"><?php esc_html_e( 'Default Row Max Width', 'nyxonn-builder' ); ?></label>
                        <div class="nyxonn-builder-admin-input-suffix">
                            <input id="nx-container-max-width" name="container_max_width" type="number" min="320" max="2400" step="1" value="<?php echo esc_attr( intval( $content_width ) ); ?>" required />
                            <span><?php esc_html_e( 'px', 'nyxonn-builder' ); ?></span>
                        </div>
                        <p class="description"><?php esc_html_e( 'Stored in the existing Global Design layout token used by new rows.', 'nyxonn-builder' ); ?></p>
                    </div>
                    <div class="nyxonn-builder-admin-field">
                        <span class="nyxonn-builder-admin-field__label"><?php esc_html_e( 'Section Width', 'nyxonn-builder' ); ?></span>
                        <strong><?php esc_html_e( '100% (built-in)', 'nyxonn-builder' ); ?></strong>
                        <p class="description"><?php esc_html_e( 'Read-only because new sections currently use the established full-width base.', 'nyxonn-builder' ); ?></p>
                    </div>
                </div>
            </section>

            <section class="nyxonn-builder-admin-card" aria-labelledby="nx-breakpoints-title">
                <div class="nyxonn-builder-admin-card__header">
                    <div>
                        <h2 id="nx-breakpoints-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Responsive Breakpoints', 'nyxonn-builder' ); ?></h2>
                        <p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Read-only until the editor preview, generated CSS, and frontend styles can share configurable values consistently.', 'nyxonn-builder' ); ?></p>
                    </div>
                    <span class="nyxonn-builder-admin-badge"><?php esc_html_e( 'Read-only', 'nyxonn-builder' ); ?></span>
                </div>
                <dl class="nyxonn-builder-admin-status-list nyxonn-builder-admin-status-list--three">
                    <div><dt><?php esc_html_e( 'Desktop', 'nyxonn-builder' ); ?></dt><dd><?php esc_html_e( 'Base viewport', 'nyxonn-builder' ); ?></dd></div>
                    <div><dt><?php esc_html_e( 'Tablet', 'nyxonn-builder' ); ?></dt><dd><?php esc_html_e( '980px and below', 'nyxonn-builder' ); ?></dd></div>
                    <div><dt><?php esc_html_e( 'Mobile', 'nyxonn-builder' ); ?></dt><dd><?php esc_html_e( '767px and below', 'nyxonn-builder' ); ?></dd></div>
                </dl>
            </section>

            <div class="nyxonn-builder-admin-form-actions">
                <button type="submit" class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary"><?php esc_html_e( 'Save Builder Settings', 'nyxonn-builder' ); ?></button>
            </div>
        </form>

        <section class="nyxonn-builder-admin-card nyxonn-builder-admin-status-card" aria-labelledby="nx-builder-status-title">
            <div class="nyxonn-builder-admin-card__header">
                <h2 id="nx-builder-status-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Builder Status', 'nyxonn-builder' ); ?></h2>
                <span class="nyxonn-builder-admin-badge nyxonn-builder-admin-badge--success"><?php esc_html_e( 'Enabled', 'nyxonn-builder' ); ?></span>
            </div>
            <dl class="nyxonn-builder-admin-status-list">
                <div><dt><?php esc_html_e( 'Enabled post types', 'nyxonn-builder' ); ?></dt><dd><?php echo esc_html( $enabled ? implode( ', ', array_map( function ( $type ) use ( $supported ) { return $supported[ $type ]->labels->singular_name ?? $type; }, $enabled ) ) : __( 'None', 'nyxonn-builder' ) ); ?></dd></div>
                <div><dt><?php esc_html_e( 'Current row width default', 'nyxonn-builder' ); ?></dt><dd><?php echo esc_html( $content_width ); ?></dd></div>
                <div><dt><?php esc_html_e( 'Responsive mode', 'nyxonn-builder' ); ?></dt><dd><?php esc_html_e( 'Fixed compatible breakpoints', 'nyxonn-builder' ); ?></dd></div>
            </dl>
        </section>
        <?php
        self::render_admin_shell_end();
    }

    /** Open the shared admin shell and render its accessible navigation/header. */
    public static function render_admin_shell_start( $current_slug, $title, $description = '', $action = '' ) {
        $navigation_slug = self::get_admin_navigation_parent_slug( $current_slug );
        $last_section    = null;
        ?>
        <div class="wrap nyxonn-builder-admin-shell">
            <aside class="nyxonn-builder-admin-sidebar">
                <div class="nyxonn-builder-admin-brand">
                    <span class="nyxonn-builder-admin-brand__mark" aria-hidden="true">N</span>
                    <span><?php esc_html_e( 'Nyxonn', 'nyxonn-builder' ); ?></span>
                </div>
                <nav class="nyxonn-builder-admin-nav" aria-label="<?php esc_attr_e( 'Nyxonn Builder admin navigation', 'nyxonn-builder' ); ?>">
                    <?php foreach ( self::get_admin_navigation() as $item ) : ?>
                        <?php
                        if ( $item['section'] !== $last_section ) {
                            $last_section = $item['section'];
                            if ( '' !== $last_section ) {
                                echo '<span class="nyxonn-builder-admin-nav__section">' . esc_html( $last_section ) . '</span>';
                            }
                        }
                        $is_current = $navigation_slug === $item['slug'];
                        ?>
                        <a class="nyxonn-builder-admin-nav__item<?php echo $is_current ? ' is-current' : ''; ?>" href="<?php echo esc_url( admin_url( 'admin.php?page=' . $item['slug'] ) ); ?>"<?php echo $is_current ? ' aria-current="page"' : ''; ?>>
                            <span class="dashicons <?php echo esc_attr( $item['icon'] ); ?>" aria-hidden="true"></span>
                            <span><?php echo esc_html( $item['label'] ); ?></span>
                        </a>
                    <?php endforeach; ?>
                </nav>
                <?php if ( ! self::is_pro_extension_registered() ) : ?>
                    <div class="nyxonn-builder-admin-sidebar__footer">
                        <a class="nyxonn-builder-admin-nav__item nyxonn-builder-admin-nav__item--upgrade<?php echo 'nyxonn-builder-upgrade-pro' === $current_slug ? ' is-current' : ''; ?>" href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-upgrade-pro' ) ); ?>"<?php echo 'nyxonn-builder-upgrade-pro' === $current_slug ? ' aria-current="page"' : ''; ?>>
                            <span class="dashicons dashicons-star-filled" aria-hidden="true"></span>
                            <span><?php esc_html_e( 'Upgrade to Pro', 'nyxonn-builder' ); ?></span>
                        </a>
                    </div>
                <?php endif; ?>
            </aside>
            <main class="nyxonn-builder-admin-main">
                <header class="nyxonn-builder-admin-header">
                    <div>
                        <h1><?php echo esc_html( $title ); ?></h1>
                        <?php if ( $description ) : ?><p><?php echo esc_html( $description ); ?></p><?php endif; ?>
                    </div>
                    <?php if ( $action ) : ?><div class="nyxonn-builder-admin-header__action"><?php echo wp_kses_post( $action ); ?></div><?php endif; ?>
                </header>
                <div class="nyxonn-builder-admin-content">
        <?php
    }

    /** Close the shared admin shell. */
    public static function render_admin_shell_end() {
        ?>
                </div>
            </main>
        </div>
        <?php
    }

    /** Return the stable internal navigation used by the new admin shell. */
    private static function get_admin_navigation() {
        $items = [
            [ 'slug' => 'nyxonn-builder', 'label' => __( 'Dashboard', 'nyxonn-builder' ), 'icon' => 'dashicons-dashboard', 'section' => '', 'order' => 10, 'capability' => 'manage_options' ],
            [ 'slug' => 'nyxonn-builder-pages', 'label' => __( 'Pages', 'nyxonn-builder' ), 'icon' => 'dashicons-admin-page', 'section' => __( 'Build', 'nyxonn-builder' ), 'order' => 100, 'capability' => 'manage_options' ],
            [ 'slug' => 'nyxonn-builder-builder-settings', 'label' => __( 'Builder Settings', 'nyxonn-builder' ), 'icon' => 'dashicons-admin-generic', 'section' => __( 'Build', 'nyxonn-builder' ), 'order' => 110, 'capability' => 'manage_options' ],
            [ 'slug' => 'nyxonn-builder-theme-builder', 'label' => __( 'Theme Builder', 'nyxonn-builder' ), 'icon' => 'dashicons-layout', 'section' => __( 'Build', 'nyxonn-builder' ), 'order' => 120, 'capability' => 'manage_options' ],
            [ 'slug' => 'nyxonn-builder-global-design', 'label' => __( 'Global Design', 'nyxonn-builder' ), 'icon' => 'dashicons-art', 'section' => __( 'Design', 'nyxonn-builder' ), 'order' => 200, 'capability' => 'manage_options' ],
            [ 'slug' => 'nyxonn-builder-assets', 'label' => __( 'Assets', 'nyxonn-builder' ), 'icon' => 'dashicons-format-image', 'section' => __( 'Design', 'nyxonn-builder' ), 'order' => 210, 'capability' => 'manage_options' ],
            [ 'slug' => 'nyxonn-builder-role-manager', 'label' => __( 'Role Manager', 'nyxonn-builder' ), 'icon' => 'dashicons-groups', 'section' => __( 'Site', 'nyxonn-builder' ), 'order' => 310, 'capability' => 'manage_options' ],
            [ 'slug' => 'nyxonn-builder-performance', 'label' => __( 'Performance', 'nyxonn-builder' ), 'icon' => 'dashicons-performance', 'section' => __( 'Optimization', 'nyxonn-builder' ), 'order' => 400, 'capability' => 'manage_options' ],
            [ 'slug' => 'nyxonn-builder-integrations', 'label' => __( 'Integrations', 'nyxonn-builder' ), 'icon' => 'dashicons-admin-links', 'section' => __( 'System', 'nyxonn-builder' ), 'order' => 500, 'capability' => 'manage_options' ],
            [ 'slug' => 'nyxonn-builder-tools', 'label' => __( 'Tools', 'nyxonn-builder' ), 'icon' => 'dashicons-admin-tools', 'section' => __( 'System', 'nyxonn-builder' ), 'order' => 510, 'capability' => 'manage_options' ],
            [ 'slug' => 'nyxonn-builder-settings', 'label' => __( 'Settings', 'nyxonn-builder' ), 'icon' => 'dashicons-admin-settings', 'section' => __( 'System', 'nyxonn-builder' ), 'order' => 520, 'capability' => 'manage_options' ],
        ];

        /**
         * Filter internal Nyxonn admin navigation items.
         *
         * Extensions may provide slug, label, section, icon, order, and capability.
         */
        $items = apply_filters( 'nyxonn_fx_admin_navigation_items', $items );
        $items = is_array( $items ) ? array_merge( $items, Extension_API::get_admin_navigation() ) : Extension_API::get_admin_navigation();
        if ( ! is_array( $items ) ) {
            return [];
        }

        $navigation = [];
        $seen       = [];
        foreach ( $items as $item ) {
            if ( ! is_array( $item ) ) {
                continue;
            }
            $slug       = isset( $item['slug'] ) ? sanitize_key( $item['slug'] ) : '';
            $label      = isset( $item['label'] ) && is_scalar( $item['label'] ) ? sanitize_text_field( (string) $item['label'] ) : '';
            $capability = isset( $item['capability'] ) ? sanitize_key( $item['capability'] ) : 'manage_options';
            if ( ! $slug || ! $label || isset( $seen[ $slug ] ) || ! $capability || ! current_user_can( $capability ) ) {
                continue;
            }
            $seen[ $slug ] = true;
            $navigation[] = [
                'slug'       => $slug,
                'label'      => $label,
                'icon'       => isset( $item['icon'] ) ? sanitize_html_class( $item['icon'] ) : 'dashicons-admin-generic',
                'section'    => isset( $item['section'] ) && is_scalar( $item['section'] ) ? sanitize_text_field( (string) $item['section'] ) : '',
                'order'      => isset( $item['order'] ) && is_numeric( $item['order'] ) ? (float) $item['order'] : 999,
                'capability' => $capability,
            ];
        }

        usort( $navigation, static function ( $left, $right ) {
            return $left['order'] <=> $right['order'];
        } );

        return $navigation;
    }

    /** Keep the Nyxonn top-level selected for core and extension-provided routes. */
    public static function highlight_parent_menu( $parent_file ) {
        $page = isset( $_GET['page'] ) ? sanitize_key( wp_unslash( $_GET['page'] ) ) : '';
        if ( ! $page ) {
            return $parent_file;
        }

        $routes = [ 'nyxonn-builder-editor', 'nyxonn-builder-template-conditions', 'nyxonn-builder-templates', 'nyxonn-builder-upgrade-pro' ];
        foreach ( self::get_admin_navigation() as $item ) {
            $routes[] = $item['slug'];
        }

        return in_array( $page, array_unique( $routes ), true ) ? 'nyxonn-builder' : $parent_file;
    }

    /** Resolve hidden routes to the internal navigation destination that owns them. */
    private static function get_admin_navigation_parent_slug( $current_slug ) {
        if ( in_array( $current_slug, [ 'nyxonn-builder-template-conditions', 'nyxonn-builder-templates' ], true ) ) {
            return 'nyxonn-builder-theme-builder';
        }

        if ( 'nyxonn-builder-editor' === $current_slug ) {
            $post_id = isset( $_GET['post_id'] ) ? absint( $_GET['post_id'] ) : 0;
            return $post_id && Template_Manager::TEMPLATES_POST_TYPE === get_post_type( $post_id ) ? 'nyxonn-builder-theme-builder' : 'nyxonn-builder-pages';
        }

        return $current_slug;
    }

    /** Query only the five most recently modified Nyxonn-enabled posts/pages. */
    private static function get_recent_nyxonn_pages() {
        return get_posts( [
            'post_type'           => [ 'page', 'post' ],
            'post_status'         => [ 'publish', 'draft', 'pending', 'private' ],
            'posts_per_page'      => 5,
            'orderby'             => 'modified',
            'order'               => 'DESC',
            'meta_key'            => '_nyxonn_builder_enabled',
            'meta_value'          => '1',
            'no_found_rows'       => true,
            'ignore_sticky_posts' => true,
        ] );
    }

    /** Render vendor-configured support links, or a truthful neutral state. */
    private static function render_resource_links() {
        $resources = [
            __( 'Documentation', 'nyxonn-builder' ) => apply_filters( 'nyxonn_fx_documentation_url', '' ),
            __( 'Support', 'nyxonn-builder' )       => apply_filters( 'nyxonn_fx_support_url', '' ),
            __( 'Website', 'nyxonn-builder' )       => apply_filters( 'nyxonn_fx_website_url', '' ),
        ];
        $resources = array_filter( array_map( 'esc_url_raw', $resources ) );

        if ( empty( $resources ) ) {
            echo '<p class="nyxonn-builder-admin-card__description">' . esc_html__( 'Resource links have not been configured.', 'nyxonn-builder' ) . '</p>';
            return;
        }
        ?>
        <ul class="nyxonn-builder-admin-resource-list">
            <?php foreach ( $resources as $label => $url ) : ?>
                <li><a href="<?php echo esc_url( $url ); ?>" target="_blank" rel="noopener noreferrer"><?php echo esc_html( $label ); ?></a></li>
            <?php endforeach; ?>
        </ul>
        <?php
    }

    /**
     * Render Pages list
     */
    public static function render_pages_list() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to view this page.', 'nyxonn-builder' ), '', [ 'response' => 403 ] );
        }

        $enabled_post_types   = Builder_Settings::get_enabled_post_types();
        $supported_post_types = array_keys( Builder_Settings::get_supported_post_types() );
        self::render_admin_shell_start(
            'nyxonn-builder-pages',
            __( 'Pages', 'nyxonn-builder' ),
            __( 'Open the Visual Builder for any enabled WordPress content type.', 'nyxonn-builder' )
        );
        ?>
        <section class="nyxonn-builder-admin-card">
            <!-- List pages/posts with quick access -->
            <table class="wp-list-table widefat fixed striped">
                <thead>
                    <tr>
                        <th><?php esc_html_e( 'Title', 'nyxonn-builder' ); ?></th>
                        <th><?php esc_html_e( 'Type', 'nyxonn-builder' ); ?></th>
                        <th><?php esc_html_e( 'Status', 'nyxonn-builder' ); ?></th>
                        <th><?php esc_html_e( 'Action', 'nyxonn-builder' ); ?></th>
                    </tr>
                </thead>
                <tbody>
                    <?php
                    $enabled_posts = get_posts( [
                        'post_type'      => $enabled_post_types ?: [ '__nx_none' ],
                        'posts_per_page' => 20,
                        'orderby'        => 'modified',
                        'order'          => 'DESC'
                    ] );

                    $existing_posts = get_posts( [
                        'post_type'      => $supported_post_types ?: [ '__nx_none' ],
                        'posts_per_page' => 20,
                        'orderby'        => 'modified',
                        'order'          => 'DESC',
                        'meta_key'       => Save::ENABLED_META,
                        'meta_value'     => '1',
                    ] );

                    $posts_by_id = [];
                    foreach ( array_merge( $enabled_posts, $existing_posts ) as $candidate ) {
                        $posts_by_id[ $candidate->ID ] = $candidate;
                    }
                    $posts = array_values( $posts_by_id );
                    usort( $posts, static function ( $left, $right ) {
                        return strcmp( $right->post_modified_gmt, $left->post_modified_gmt );
                    } );
                    $posts = array_slice( $posts, 0, 20 );
                    
                    foreach ( $posts as $post ) {
                        if ( ! Builder_Settings::can_open_builder( $post ) || ! Role_Manager::can_use_builder( $post->ID ) ) {
                            continue;
                        }
                        $edit_url = admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . $post->ID );
                        ?>
                        <tr>
                            <td><strong><?php echo esc_html( $post->post_title ); ?></strong></td>
                            <td><?php echo esc_html( ucfirst( $post->post_type ) ); ?></td>
                            <td><?php echo esc_html( ucfirst( $post->post_status ) ); ?></td>
                            <td>
                                <a href="<?php echo esc_url( $edit_url ); ?>" class="button button-primary">
                                    <?php esc_html_e( 'Edit with Nyxonn Builder', 'nyxonn-builder' ); ?>
                                </a>
                            </td>
                        </tr>
                        <?php
                    }
                    ?>
                </tbody>
            </table>
        </section>
        <?php
        self::render_admin_shell_end();
    }

    /**
     * Render Builder page (for templates)
     */
    public static function render_builder() {
        ?>
        <div class="wrap nyxonn-builder-admin-page">
            <h1><?php esc_html_e( 'Template Editor', 'nyxonn-builder' ); ?></h1>
            <p><?php esc_html_e( 'Use Theme Builder below to edit header, footer, and page templates', 'nyxonn-builder' ); ?></p>
            <div id="nx-builder-root"></div>
        </div>
        <?php
    }

    /**
     * Render Global Settings page
     */
    public static function render_global_settings() {
        if ( class_exists( '\NyxonnBuilder\Global_Settings' ) ) {
            \NyxonnBuilder\Global_Settings::render_admin_page();
            return;
        }
        echo '<div class="wrap"><h1>Global Settings</h1><p>Settings component not available.</p></div>';
    }

    /**
     * Render Theme Builder page
     */
    private static function render_theme_builder_management() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to view this page.', 'nyxonn-builder' ) );
        }

        $status = isset( $_GET['status'] ) ? sanitize_key( wp_unslash( $_GET['status'] ) ) : 'publish';
        $status = in_array( $status, [ 'publish', 'trash' ], true ) ? $status : 'publish';
        $base_url = admin_url( 'admin.php?page=nyxonn-builder-theme-builder' );
        $current_url = 'trash' === $status ? add_query_arg( 'status', 'trash', $base_url ) : $base_url;
        $templates = get_posts( [
            'post_type'      => \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE,
            'post_status'    => 'trash' === $status ? 'trash' : 'any',
            'posts_per_page' => -1,
            'orderby'        => 'modified',
            'order'          => 'DESC',
        ] );
        $templates = array_values( array_filter( $templates, static function ( $template ) {
            return in_array( \NyxonnBuilder\Template_Manager::get_template_type( $template->ID ), [ 'header', 'footer' ], true );
        } ) );
        $type_labels = \NyxonnBuilder\Template_Manager::get_template_types();
        $trash_total = self::count_theme_templates_by_status( 'trash' );

        self::render_admin_shell_start(
            'nyxonn-builder-theme-builder',
            __( 'Theme Builder', 'nyxonn-builder' ),
            __( 'Create and manage reusable site templates with Nyxonn Builder.', 'nyxonn-builder' )
        );
        ?>
        <?php if ( isset( $_GET['deleted'] ) ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success"><?php esc_html_e( 'Template moved to Trash.', 'nyxonn-builder' ); ?></div><?php endif; ?>
        <?php if ( isset( $_GET['restored'] ) ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success"><?php esc_html_e( 'Template restored.', 'nyxonn-builder' ); ?></div><?php endif; ?>
        <?php if ( isset( $_GET['permanently_deleted'] ) ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success"><?php esc_html_e( 'Template deleted permanently.', 'nyxonn-builder' ); ?></div><?php endif; ?>
        <?php if ( isset( $_GET['duplicated'] ) ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success"><?php esc_html_e( 'Template duplicated as an unassigned draft.', 'nyxonn-builder' ); ?></div><?php endif; ?>
        <?php if ( isset( $_GET['locked'] ) ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--info"><?php esc_html_e( 'The required global header or footer cannot be deleted or reassigned.', 'nyxonn-builder' ); ?></div><?php endif; ?>
        <?php if ( isset( $_GET['error'] ) && 'conditions_unsupported' === sanitize_key( wp_unslash( $_GET['error'] ) ) ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--error"><?php esc_html_e( 'Frontend display conditions are available only for Header and Footer templates.', 'nyxonn-builder' ); ?></div><?php endif; ?>

        <div class="nx-theme-toolbar">
            <div class="nyxonn-builder-admin-tabs nx-theme-status-tabs">
                <a class="<?php echo 'publish' === $status ? 'is-current' : ''; ?>" href="<?php echo esc_url( $base_url ); ?>"><?php esc_html_e( 'Templates', 'nyxonn-builder' ); ?></a>
                <a class="<?php echo 'trash' === $status ? 'is-current' : ''; ?>" href="<?php echo esc_url( add_query_arg( 'status', 'trash', $base_url ) ); ?>"><?php echo esc_html( sprintf( /* translators: %d: number of trashed templates. */ __( 'Trash (%d)', 'nyxonn-builder' ), $trash_total ) ); ?></a>
            </div>
            <?php if ( 'publish' === $status ) : ?>
                <details class="nx-template-create">
                    <summary class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary"><?php esc_html_e( 'Add New Template', 'nyxonn-builder' ); ?></summary>
                    <form class="nyxonn-builder-admin-card" method="post" action="<?php echo esc_url( $base_url ); ?>">
                        <?php wp_nonce_field( 'nyxonn_builder_create_template', 'nyxonn_builder_create_template_nonce' ); ?>
                        <input type="hidden" name="nyxonn_builder_theme_builder_action" value="create_template" />
                        <h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Create Template', 'nyxonn-builder' ); ?></h2>
                        <div class="nyxonn-builder-admin-form-grid">
                            <div class="nyxonn-builder-admin-field"><label for="nx-new-template-name"><?php esc_html_e( 'Template name', 'nyxonn-builder' ); ?></label><input id="nx-new-template-name" type="text" name="template_name" required /></div>
                            <div class="nyxonn-builder-admin-field"><label for="nx-new-template-type"><?php esc_html_e( 'Template type', 'nyxonn-builder' ); ?></label><select id="nx-new-template-type" name="template_type"><option value="header"><?php esc_html_e( 'Header', 'nyxonn-builder' ); ?></option><option value="footer"><?php esc_html_e( 'Footer', 'nyxonn-builder' ); ?></option></select></div>
                        </div>
                        <button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary" type="submit"><?php esc_html_e( 'Create and Edit', 'nyxonn-builder' ); ?></button>
                    </form>
                </details>
            <?php endif; ?>
        </div>

        <section class="nyxonn-builder-admin-card nx-template-list-card">
            <?php if ( empty( $templates ) ) : ?>
                <div class="nyxonn-builder-admin-empty-state"><h2><?php esc_html_e( 'No Theme Builder templates yet.', 'nyxonn-builder' ); ?></h2><p><?php echo 'trash' === $status ? esc_html__( 'Deleted templates will appear here.', 'nyxonn-builder' ) : esc_html__( 'Use Add New Template to create a Header or Footer.', 'nyxonn-builder' ); ?></p></div>
            <?php else : ?>
                <div class="nyxonn-builder-admin-table-wrap"><table class="nyxonn-builder-admin-table"><thead><tr><th><?php esc_html_e( 'Template', 'nyxonn-builder' ); ?></th><th><?php esc_html_e( 'Type', 'nyxonn-builder' ); ?></th><th><?php esc_html_e( 'Status', 'nyxonn-builder' ); ?></th><th><?php esc_html_e( 'Conditions', 'nyxonn-builder' ); ?></th><th><?php esc_html_e( 'Last modified', 'nyxonn-builder' ); ?></th><th><?php esc_html_e( 'Actions', 'nyxonn-builder' ); ?></th></tr></thead><tbody>
                <?php foreach ( $templates as $template ) :
                    $raw_type = \NyxonnBuilder\Template_Manager::get_template_type( $template->ID );
                    $resolved_type = \NyxonnBuilder\Template_Manager::PAGE_TEMPLATE_TYPE === $raw_type ? 'page' : $raw_type;
                    $type_label = $type_labels[ $resolved_type ] ?? ucwords( str_replace( '_', ' ', $raw_type ) );
                    $supports_conditions = in_array( $raw_type, [ 'header', 'footer' ], true );
                    $rules = \NyxonnBuilder\Template_Manager::get_template_rules( $template->ID );
                    $conflicts = 'publish' === $template->post_status ? \NyxonnBuilder\Template_Manager::get_conflicts( $template->ID ) : [];
                    $protected = self::is_protected_default_template( $template->ID, $raw_type );
                ?>
                    <tr><td><strong><?php echo esc_html( $template->post_title ?: __( '(no title)', 'nyxonn-builder' ) ); ?></strong><?php if ( ! $supports_conditions ) : ?><small><?php esc_html_e( 'Builder library record', 'nyxonn-builder' ); ?></small><?php endif; ?></td>
                    <?php $status_object = get_post_status_object( $template->post_status ); ?>
                    <td><?php echo esc_html( $type_label ); ?></td><td><span class="nyxonn-builder-admin-badge <?php echo 'publish' === $template->post_status ? 'nyxonn-builder-admin-badge--success' : ''; ?>"><?php echo esc_html( $status_object ? $status_object->label : ucfirst( $template->post_status ) ); ?></span></td>
                    <td><?php echo $supports_conditions ? esc_html( \NyxonnBuilder\Template_Manager::get_rules_summary( $rules ) ) : esc_html__( 'Not used by the theme resolver', 'nyxonn-builder' ); ?><?php if ( $conflicts ) : ?> <span class="nyxonn-builder-admin-badge nyxonn-builder-admin-badge--warning" title="<?php echo esc_attr( sprintf( /* translators: %s: comma-separated conflicting template IDs. */ __( 'Overlaps at equal priority with template IDs: %s', 'nyxonn-builder' ), implode( ', ', $conflicts ) ) ); ?>"><?php esc_html_e( 'Conflict', 'nyxonn-builder' ); ?></span><?php endif; ?></td>
                    <td><?php echo esc_html( get_the_modified_date( get_option( 'date_format' ) . ' ' . get_option( 'time_format' ), $template ) ); ?></td>
                    <td><div class="nx-template-actions">
                    <?php if ( 'publish' === $status ) : ?>
                        <a class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . $template->ID ) ); ?>"><?php esc_html_e( 'Edit with Nyxonn', 'nyxonn-builder' ); ?></a>
                        <?php if ( $supports_conditions && ! $protected ) : ?><a class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-template-conditions&template_id=' . $template->ID ) ); ?>"><?php esc_html_e( 'Manage conditions', 'nyxonn-builder' ); ?></a><?php endif; ?>
                        <form method="post" action="<?php echo esc_url( $current_url ); ?>"><?php wp_nonce_field( 'nyxonn_builder_duplicate_template', 'nyxonn_builder_duplicate_template_nonce' ); ?><input type="hidden" name="nyxonn_builder_theme_builder_action" value="duplicate_template" /><input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" /><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" type="submit"><?php esc_html_e( 'Duplicate', 'nyxonn-builder' ); ?></button></form>
                        <?php if ( ! $protected ) : ?><form method="post" action="<?php echo esc_url( $current_url ); ?>"><?php wp_nonce_field( 'nyxonn_builder_delete_template', 'nyxonn_builder_delete_template_nonce' ); ?><input type="hidden" name="nyxonn_builder_theme_builder_action" value="delete_template" /><input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" /><input type="hidden" name="redirect_to" value="<?php echo esc_url( $current_url ); ?>" /><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--destructive" type="submit"><?php esc_html_e( 'Delete', 'nyxonn-builder' ); ?></button></form><?php else : ?><span class="nyxonn-builder-admin-badge"><?php esc_html_e( 'Required global', 'nyxonn-builder' ); ?></span><?php endif; ?>
                    <?php else : ?>
                        <form method="post" action="<?php echo esc_url( $current_url ); ?>"><?php wp_nonce_field( 'nyxonn_builder_restore_template', 'nyxonn_builder_restore_template_nonce' ); ?><input type="hidden" name="nyxonn_builder_theme_builder_action" value="restore_template" /><input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" /><input type="hidden" name="redirect_to" value="<?php echo esc_url( $current_url ); ?>" /><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" type="submit"><?php esc_html_e( 'Restore', 'nyxonn-builder' ); ?></button></form>
                        <form method="post" action="<?php echo esc_url( $current_url ); ?>"><?php wp_nonce_field( 'nyxonn_builder_delete_template_permanently', 'nyxonn_builder_delete_template_permanently_nonce' ); ?><input type="hidden" name="nyxonn_builder_theme_builder_action" value="delete_template_permanently" /><input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" /><input type="hidden" name="redirect_to" value="<?php echo esc_url( $current_url ); ?>" /><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--destructive" type="submit"><?php esc_html_e( 'Delete permanently', 'nyxonn-builder' ); ?></button></form>
                    <?php endif; ?>
                    </div></td></tr>
                <?php endforeach; ?>
                </tbody></table></div>
            <?php endif; ?>
        </section>
        <?php
        self::render_admin_shell_end();
    }

    public static function render_theme_builder() {
        self::render_theme_builder_management();
        return;
        $types = class_exists( '\NyxonnBuilder\Template_Manager' ) ? \NyxonnBuilder\Template_Manager::get_template_types() : [];
        $status = isset( $_GET['status'] ) ? sanitize_key( wp_unslash( $_GET['status'] ) ) : 'publish';
        $status = in_array( $status, [ 'publish', 'trash' ], true ) ? $status : 'publish';
        $theme_builder_url = admin_url( 'admin.php?page=nyxonn-builder-theme-builder' );
        $templates = get_posts( [
            'post_type'      => \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE,
            'post_status'    => $status,
            'posts_per_page' => -1,
            'orderby'        => 'modified',
            'order'          => 'DESC',
        ] );
        $trash_total = self::count_theme_templates_by_status( 'trash' );
        $grouped = [];
        foreach ( array_keys( $types ) as $type_key ) {
            $grouped[ $type_key ] = [];
        }
        foreach ( $templates as $template ) {
            $template_type = get_post_meta( $template->ID, \NyxonnBuilder\Template_Manager::TEMPLATE_TYPE_META, true );
            if ( \NyxonnBuilder\Template_Manager::PAGE_TEMPLATE_TYPE === $template_type ) {
                $template_type = 'page';
            }
            if ( isset( $grouped[ $template_type ] ) ) {
                $grouped[ $template_type ][] = $template;
            }
        }
        foreach ( $grouped as $type_key => $items ) {
            usort( $items, function( $a, $b ) {
                $a_rules = \NyxonnBuilder\Template_Manager::get_template_rules( $a->ID );
                $b_rules = \NyxonnBuilder\Template_Manager::get_template_rules( $b->ID );
                if ( ! empty( $a_rules['all'] ) && empty( $b_rules['all'] ) ) return -1;
                if ( empty( $a_rules['all'] ) && ! empty( $b_rules['all'] ) ) return 1;
                return strtotime( $b->post_modified ) <=> strtotime( $a->post_modified );
            } );
            $grouped[ $type_key ] = $items;
        }
        $tab_order = [ 'header', 'footer', 'section', 'single', 'page', 'category', 'archive', '404', 'popup', 'loop' ];
        ?>
        <div class="wrap nyxonn-builder-admin-page">
            <h1><?php esc_html_e( 'Theme Builder', 'nyxonn-builder' ); ?></h1>
            <p><?php esc_html_e( 'Create global and conditional templates for every site area.', 'nyxonn-builder' ); ?></p>
            <?php if ( isset( $_GET['deleted'] ) && '1' === sanitize_text_field( wp_unslash( $_GET['deleted'] ) ) ) : ?>
                <div class="notice notice-success is-dismissible">
                    <p><?php esc_html_e( 'Template moved to Trash.', 'nyxonn-builder' ); ?></p>
                </div>
            <?php endif; ?>
            <?php if ( isset( $_GET['restored'] ) && '1' === sanitize_text_field( wp_unslash( $_GET['restored'] ) ) ) : ?>
                <div class="notice notice-success is-dismissible">
                    <p><?php esc_html_e( 'Template restored.', 'nyxonn-builder' ); ?></p>
                </div>
            <?php endif; ?>
            <?php if ( isset( $_GET['permanently_deleted'] ) && '1' === sanitize_text_field( wp_unslash( $_GET['permanently_deleted'] ) ) ) : ?>
                <div class="notice notice-success is-dismissible">
                    <p><?php esc_html_e( 'Template deleted permanently.', 'nyxonn-builder' ); ?></p>
                </div>
            <?php endif; ?>

            <p style="margin:20px 0 24px;">
                <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-templates' ) ); ?>" class="button"><?php esc_html_e( 'Manage All Templates', 'nyxonn-builder' ); ?></a>
                <a href="<?php echo esc_url( $theme_builder_url ); ?>" class="button <?php echo 'publish' === $status ? 'button-primary' : ''; ?>"><?php esc_html_e( 'Active', 'nyxonn-builder' ); ?></a>
                <a href="<?php echo esc_url( add_query_arg( 'status', 'trash', $theme_builder_url ) ); ?>" class="button <?php echo 'trash' === $status ? 'button-primary' : ''; ?>">
                    <?php
                    /* translators: %d: number of templates in trash. */
                    echo esc_html( sprintf( /* translators: %d: number of trashed templates. */ __( 'Trash (%d)', 'nyxonn-builder' ), $trash_total ) );
                    ?>
                </a>
            </p>

            <div style="display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px;">
                <?php foreach ( $tab_order as $index => $tab_key ) : ?>
                    <?php if ( empty( $types[ $tab_key ] ) ) continue; ?>
                    <button type="button" class="button nx-theme-tab <?php echo 0 === $index ? 'button-primary' : ''; ?>" data-tab="<?php echo esc_attr( $tab_key ); ?>"><?php echo esc_html( $types[ $tab_key ] ); ?></button>
                <?php endforeach; ?>
            </div>

            <?php foreach ( $tab_order as $index => $type_key ) : ?>
                <?php if ( empty( $types[ $type_key ] ) ) continue; ?>
                <div class="nx-theme-panel" data-tab-panel="<?php echo esc_attr( $type_key ); ?>" style="<?php echo 0 === $index ? '' : 'display:none;'; ?>">
                    <div class="nx-theme-builder-grid" style="grid-template-columns:repeat(3,minmax(0,1fr));">
                        <?php if ( 'trash' !== $status ) : ?>
                        <div class="nx-template-card">
                            <h3><?php
                            /* translators: %s: template type label. */
                            echo esc_html( sprintf( /* translators: %s: template type label. */ __( 'Add New %s', 'nyxonn-builder' ), $types[ $type_key ] ) );
                            ?></h3>
                            <p><?php
                            /* translators: %s: lowercased template type label. */
                            echo esc_html( sprintf( /* translators: %s: template type label. */ __( 'Create a new %s template.', 'nyxonn-builder' ), strtolower( $types[ $type_key ] ) ) );
                            ?></p>
                            <button type="button" class="button button-primary nx-open-create-template" data-template-type="<?php echo esc_attr( $type_key ); ?>" data-template-label="<?php echo esc_attr( $types[ $type_key ] ); ?>">
                                <?php
                                /* translators: %s: template type label. */
                                echo esc_html( sprintf( /* translators: %s: template type label. */ __( 'Add New %s', 'nyxonn-builder' ), $types[ $type_key ] ) );
                                ?>
                            </button>
                        </div>
                        <?php endif; ?>
                        <?php if ( ! empty( $grouped[ $type_key ] ) ) : ?>
                            <?php foreach ( $grouped[ $type_key ] as $template ) : ?>
                                <?php $rules = \NyxonnBuilder\Template_Manager::get_template_rules( $template->ID ); ?>
                                <?php $is_protected_default = self::is_protected_default_template( $template->ID ); ?>
                                <?php $raw_template_type = get_post_meta( $template->ID, \NyxonnBuilder\Template_Manager::TEMPLATE_TYPE_META, true ); ?>
                                <?php $is_saved_page_layout = \NyxonnBuilder\Template_Manager::PAGE_TEMPLATE_TYPE === $raw_template_type; ?>
                                <?php $supports_conditions = 'section' !== $type_key; ?>
                                <div class="nx-template-card nx-template-item <?php echo ! empty( $rules['all'] ) ? 'is-global' : ''; ?>" data-template-card-id="<?php echo esc_attr( $template->ID ); ?>" style="border-color:<?php echo ! empty( $rules['all'] ) ? '#6366f1' : '#e5e7eb'; ?>;background:<?php echo ! empty( $rules['all'] ) ? '#eef2ff' : '#fff'; ?>;text-align:left;">
                                    <h3 style="margin-bottom:6px;"><?php echo esc_html( $template->post_title ); ?></h3>
                                    <span class="nx-template-badge" style="display:inline-block;font-size:12px;color:<?php echo ! empty( $rules['all'] ) ? '#4338ca' : '#6b7280'; ?>;margin:4px 0;">
                                        <?php echo $is_saved_page_layout ? esc_html__( 'Saved Page Layout', 'nyxonn-builder' ) : ( 'section' === $type_key ? esc_html__( 'Reusable', 'nyxonn-builder' ) : ( ! empty( $rules['all'] ) ? esc_html__( 'Global', 'nyxonn-builder' ) : esc_html__( 'Conditional', 'nyxonn-builder' ) ) ); ?>
                                    </span>
                                    <div class="nx-template-summary" style="font-size:12px;color:#6b7280;min-height:40px;">
                                        <?php echo esc_html( $is_saved_page_layout ? __( 'Reusable full-page layout saved from the page builder.', 'nyxonn-builder' ) : ( 'section' === $type_key ? __( 'Reusable global section for any page.', 'nyxonn-builder' ) : \NyxonnBuilder\Template_Manager::get_rules_summary( $rules ) ) ); ?>
                                    </div>
                                    <div style="display:flex;gap:8px;margin-top:12px;flex-wrap:wrap;">
                                        <?php if ( 'trash' !== $status ) : ?>
                                            <a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-editor&post_id=' . $template->ID ) ); ?>" class="button button-primary"><?php esc_html_e( 'Edit', 'nyxonn-builder' ); ?></a>
                                            <?php if ( ! $is_protected_default ) : ?>
                                                <?php if ( $supports_conditions && ! $is_saved_page_layout ) : ?>
                                                    <button type="button" class="button nx-open-conditions-popup" data-template-id="<?php echo esc_attr( $template->ID ); ?>" data-template-title="<?php echo esc_attr( $template->post_title ); ?>"><?php esc_html_e( 'Conditions', 'nyxonn-builder' ); ?></button>
                                                <?php else : ?>
                                                    <span class="button disabled" aria-disabled="true"><?php echo esc_html( $is_saved_page_layout ? __( 'Reusable Page Layout', 'nyxonn-builder' ) : __( 'Reusable Section', 'nyxonn-builder' ) ); ?></span>
                                                <?php endif; ?>
                                                <form method="post" action="<?php echo esc_url( $theme_builder_url ); ?>" style="display:inline-block;">
                                                    <?php wp_nonce_field( 'nyxonn_builder_delete_template', 'nyxonn_builder_delete_template_nonce' ); ?>
                                                    <input type="hidden" name="nyxonn_builder_theme_builder_action" value="delete_template" />
                                                    <input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" />
                                                    <input type="hidden" name="redirect_to" value="<?php echo esc_url( $theme_builder_url ); ?>" />
                                                    <button type="submit" class="button button-link-delete"><?php esc_html_e( 'Delete', 'nyxonn-builder' ); ?></button>
                                                </form>
                                            <?php else : ?>
                                                <span class="button disabled" aria-disabled="true"><?php esc_html_e( 'Conditions Locked', 'nyxonn-builder' ); ?></span>
                                                <span class="button disabled" aria-disabled="true"><?php esc_html_e( 'Delete Locked', 'nyxonn-builder' ); ?></span>
                                                <form method="post" action="<?php echo esc_url( $theme_builder_url ); ?>" style="display:inline-block;">
                                                    <?php wp_nonce_field( 'nyxonn_builder_clear_template_content', 'nyxonn_builder_clear_template_content_nonce' ); ?>
                                                    <input type="hidden" name="nyxonn_builder_theme_builder_action" value="clear_template_content" />
                                                    <input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" />
                                                    <input type="hidden" name="redirect_to" value="<?php echo esc_url( $theme_builder_url ); ?>" />
                                                    <button type="submit" class="button"><?php esc_html_e( 'Clear Content', 'nyxonn-builder' ); ?></button>
                                                </form>
                                            <?php endif; ?>
                                        <?php else : ?>
                                            <form method="post" action="<?php echo esc_url( add_query_arg( 'status', 'trash', $theme_builder_url ) ); ?>" style="display:inline-block;">
                                                <?php wp_nonce_field( 'nyxonn_builder_restore_template', 'nyxonn_builder_restore_template_nonce' ); ?>
                                                <input type="hidden" name="nyxonn_builder_theme_builder_action" value="restore_template" />
                                                <input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" />
                                                <input type="hidden" name="redirect_to" value="<?php echo esc_url( $theme_builder_url ); ?>" />
                                                <button type="submit" class="button"><?php esc_html_e( 'Restore', 'nyxonn-builder' ); ?></button>
                                            </form>
                                            <form method="post" action="<?php echo esc_url( add_query_arg( 'status', 'trash', $theme_builder_url ) ); ?>" style="display:inline-block;">
                                                <?php wp_nonce_field( 'nyxonn_builder_delete_template_permanently', 'nyxonn_builder_delete_template_permanently_nonce' ); ?>
                                                <input type="hidden" name="nyxonn_builder_theme_builder_action" value="delete_template_permanently" />
                                                <input type="hidden" name="template_id" value="<?php echo esc_attr( $template->ID ); ?>" />
                                                <input type="hidden" name="redirect_to" value="<?php echo esc_url( add_query_arg( 'status', 'trash', $theme_builder_url ) ); ?>" />
                                                <button type="submit" class="button button-link-delete"><?php esc_html_e( 'Delete Permanently', 'nyxonn-builder' ); ?></button>
                                            </form>
                                        <?php endif; ?>
                                    </div>
                                </div>
                            <?php endforeach; ?>
                        <?php endif; ?>
                    </div>
                </div>
            <?php endforeach; ?>

            <div id="nx-template-create-modal" style="display:none;position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:100000;align-items:center;justify-content:center;padding:20px;">
                <div style="width:min(760px,100%);max-height:calc(100vh - 40px);overflow:auto;background:#fff;border-radius:14px;padding:24px;box-shadow:0 24px 60px rgba(15,23,42,.25);position:relative;">
                    <button type="button" id="nx-template-create-close" style="position:absolute;right:12px;top:12px;border:0;background:#f3f4f6;border-radius:999px;width:32px;height:32px;cursor:pointer;">x</button>
                    <h2 id="nx-template-create-title" style="margin:0 0 8px;"><?php esc_html_e( 'Add New Template', 'nyxonn-builder' ); ?></h2>
                    <p style="margin:0 0 18px;color:#6b7280;"><?php esc_html_e( 'Give your template a name, choose where it should appear, then save to open it in the builder.', 'nyxonn-builder' ); ?></p>
                    <form method="post" action="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-theme-builder' ) ); ?>">
                        <?php wp_nonce_field( 'nyxonn_builder_create_template', 'nyxonn_builder_create_template_nonce' ); ?>
                        <input type="hidden" name="nyxonn_builder_theme_builder_action" value="create_template" />
                        <input type="hidden" name="template_type" id="nx-template-create-type" value="" />
                        <p style="margin:0 0 14px;">
                            <label for="nx-template-create-name"><strong><?php esc_html_e( 'Template Name', 'nyxonn-builder' ); ?></strong></label><br />
                            <input type="text" name="template_name" id="nx-template-create-name" style="width:100%;" placeholder="<?php esc_attr_e( 'My Custom Template', 'nyxonn-builder' ); ?>" />
                        </p>
                        <?php foreach ( $types as $create_type_key => $create_type_label ) : ?>
                            <div class="nx-create-template-rules" data-create-template-rules="<?php echo esc_attr( $create_type_key ); ?>" style="display:none;border:1px solid #e5e7eb;border-radius:12px;padding:16px;margin-bottom:14px;">
                                <?php
                                $create_rules = self::get_default_template_rules( $create_type_key );
                                if ( in_array( $create_type_key, [ 'header', 'footer' ], true ) && \NyxonnBuilder\Template_Manager::has_global_template( $create_type_key ) ) {
                                    $create_rules['all'] = false;
                                }
                                \NyxonnBuilder\Template_Manager::render_rules_fields(
                                    $create_type_key,
                                    $create_rules,
                                    0,
                                    [
                                        'show_type_selector' => false,
                                        'allow_global'       => ! ( in_array( $create_type_key, [ 'header', 'footer' ], true ) && \NyxonnBuilder\Template_Manager::has_global_template( $create_type_key ) ),
                                    ]
                                );
                                ?>
                            </div>
                        <?php endforeach; ?>
                        <p style="margin:0;display:flex;gap:10px;justify-content:flex-end;">
                            <button type="button" id="nx-template-create-cancel" class="button"><?php esc_html_e( 'Cancel', 'nyxonn-builder' ); ?></button>
                            <button type="submit" class="button button-primary"><?php esc_html_e( 'Save & Edit Template', 'nyxonn-builder' ); ?></button>
                        </p>
                    </form>
                </div>
            </div>

            <div id="nx-template-conditions-modal" style="display:none;position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:100000;align-items:center;justify-content:center;padding:20px;">
                <div style="width:min(760px,100%);max-height:calc(100vh - 40px);overflow:auto;background:#fff;border-radius:14px;padding:24px;box-shadow:0 24px 60px rgba(15,23,42,.25);position:relative;">
                    <button type="button" id="nx-template-conditions-close" style="position:absolute;right:12px;top:12px;border:0;background:#f3f4f6;border-radius:999px;width:32px;height:32px;cursor:pointer;">x</button>
                    <h2 id="nx-template-conditions-title" style="margin:0 0 18px;"><?php esc_html_e( 'Template Conditions', 'nyxonn-builder' ); ?></h2>
                    <div id="nx-template-conditions-content"></div>
                </div>
            </div>

        </div>
        <?php
    }

    /**
     * Render Assets page
     */
    public static function render_assets() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to view this page.', 'nyxonn-builder' ) );
        }

        self::render_admin_shell_start(
            'nyxonn-builder-assets',
            __( 'Assets', 'nyxonn-builder' ),
            __( 'Manage custom fonts and review retained icon-library registrations.', 'nyxonn-builder' )
        );
        ?>
        <div class="nyxonn-builder-admin-tabs nyxonn-builder-assets-tabs" role="tablist" aria-label="<?php esc_attr_e( 'Asset types', 'nyxonn-builder' ); ?>">
                <a href="#nx-fonts" class="is-current" role="tab" aria-selected="true">
                    <?php esc_html_e( 'Custom Fonts', 'nyxonn-builder' ); ?>
                </a>
                <a href="#nx-icons" role="tab" aria-selected="false">
                    <?php esc_html_e( 'Icon Libraries', 'nyxonn-builder' ); ?>
                </a>
        </div>
            <section id="nx-fonts" class="nyxonn-builder-admin-card nyxonn-builder-assets-panel is-current" role="tabpanel">
                <div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Custom Fonts', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Register font files for use in Nyxonn layouts. Supported formats: WOFF2, WOFF, TTF, and OTF.', 'nyxonn-builder' ); ?></p></div></div>
                <div id="nx-fonts-root"></div>
            </section>
            <section id="nx-icons" class="nyxonn-builder-admin-card nyxonn-builder-assets-panel" role="tabpanel" hidden>
                <div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Icon Libraries', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Raw CSS uploads are disabled. Existing registrations remain visible as read-only compatibility data.', 'nyxonn-builder' ); ?></p></div></div>
                <div id="nx-icons-root"></div>
            </section>
        <?php
        self::render_admin_shell_end();
    }

    /**
     * Render Role Manager page
     */
    public static function render_role_manager() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to manage role access.', 'nyxonn-builder' ), '', [ 'response' => 403 ] );
        }
        $roles = wp_roles();
        self::render_admin_shell_start(
            'nyxonn-builder-role-manager',
            __( 'Role Manager', 'nyxonn-builder' ),
            __( 'Control which WordPress roles can access Nyxonn Builder features.', 'nyxonn-builder' )
        );
        ?>
        <?php if ( isset( $_GET['nyxonn_builder_notice'] ) && 'saved' === sanitize_key( wp_unslash( $_GET['nyxonn_builder_notice'] ) ) ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success"><?php esc_html_e( 'Builder role access saved.', 'nyxonn-builder' ); ?></div><?php endif; ?>
        <form class="nyxonn-builder-admin-card" method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>">
            <input type="hidden" name="action" value="nyxonn_builder_save_role_manager" /><?php wp_nonce_field( 'nyxonn_builder_save_role_manager' ); ?>
            <div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Builder Access', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'This controls the visual builder screen, builder save/layout endpoints, template libraries, and builder entry links. It does not grant WordPress post-editing privileges.', 'nyxonn-builder' ); ?></p></div></div>
            <div class="nx-role-list">
            <?php foreach ( $roles->roles as $slug => $data ) : $role = $roles->get_role( $slug ); $protected = ! empty( $data['capabilities']['manage_options'] ); ?>
                <label class="nx-role-row"><span><strong><?php echo esc_html( translate_user_role( $data['name'] ) ); ?></strong><small><?php echo esc_html( $slug ); ?></small></span><span class="nx-role-control"><input type="checkbox" name="builder_roles[]" value="<?php echo esc_attr( $slug ); ?>" <?php checked( $protected || ( $role && $role->has_cap( \NyxonnBuilder\Role_Manager::BUILDER_CAPABILITY ) ) ); ?> <?php disabled( $protected ); ?> /><?php echo $protected ? esc_html__( 'Always allowed', 'nyxonn-builder' ) : esc_html__( 'Can use Builder', 'nyxonn-builder' ); ?></span></label>
            <?php endforeach; ?>
            </div>
            <div class="nyxonn-builder-admin-actions"><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary" type="submit"><?php esc_html_e( 'Save Role Access', 'nyxonn-builder' ); ?></button></div>
        </form>
        <?php
        self::render_admin_shell_end();
    }

    public static function render_performance() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to view performance settings.', 'nyxonn-builder' ), '', [ 'response' => 403 ] );
        }
        $settings = \NyxonnBuilder\Performance_Settings::get_settings();
        $custom_fonts = count( \NyxonnBuilder\Assets_Manager::get_fonts() );
        $custom_icons = count( \NyxonnBuilder\Assets_Manager::get_icons() );
        $notice = isset( $_GET['nyxonn_builder_notice'] ) ? sanitize_key( wp_unslash( $_GET['nyxonn_builder_notice'] ) ) : '';
        self::render_admin_shell_start( 'nyxonn-builder-performance', __( 'Performance', 'nyxonn-builder' ), __( 'Control Nyxonn Builder frontend asset loading and compatibility-safe optimizations.', 'nyxonn-builder' ) );
        ?>
        <?php if ( 'saved' === $notice ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success" role="status"><?php esc_html_e( 'Performance settings saved.', 'nyxonn-builder' ); ?></div><?php elseif ( 'reset' === $notice ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success" role="status"><?php esc_html_e( 'Performance settings reset to Nyxonn defaults.', 'nyxonn-builder' ); ?></div><?php endif; ?>
        <div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--info"><?php esc_html_e( 'Optimizations fail toward compatibility. Unrelated pages still receive no Nyxonn frontend assets.', 'nyxonn-builder' ); ?></div>
        <form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" class="nyxonn-builder-admin-settings-form">
            <input type="hidden" name="action" value="nyxonn_builder_save_performance" /><?php wp_nonce_field( 'nyxonn_builder_save_performance' ); ?>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Asset Loading', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Use the request profile from page content and matched Theme Builder templates.', 'nyxonn-builder' ); ?></p></div></div><?php self::render_performance_toggle( 'dynamic_module_assets', __( 'Dynamic Module Assets', 'nyxonn-builder' ), __( 'Load registered add-on styles and scripts only for module types used on this request. Turning this off loads all trusted registered module dependencies on Nyxonn pages.', 'nyxonn-builder' ), $settings, __( 'Recommended', 'nyxonn-builder' ) ); ?></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'CSS Optimization', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Global design variables remain available regardless of these choices.', 'nyxonn-builder' ); ?></p></div></div><div class="nx-performance-setting"><div><strong><?php esc_html_e( 'Dynamic CSS', 'nyxonn-builder' ); ?></strong><p><?php esc_html_e( 'Request-specific layout CSS is already generated only from the current saved page and matched templates. Static module CSS remains in the compatibility stylesheet.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge nyxonn-builder-admin-badge--success"><?php esc_html_e( 'Active', 'nyxonn-builder' ); ?></span></div><?php self::render_performance_toggle( 'inline_dynamic_styles', __( 'Inline Dynamic Styles', 'nyxonn-builder' ), __( 'Output generated request CSS beside its Nyxonn markup. When disabled, the same generated CSS is attached to the frontend stylesheet in the document head.', 'nyxonn-builder' ), $settings, __( 'Recommended', 'nyxonn-builder' ) ); ?><?php self::render_performance_toggle( 'critical_css', __( 'Critical CSS', 'nyxonn-builder' ), __( 'Immediately apply generated CSS for initial Nyxonn sections and defer generated CSS for later sections. Static Nyxonn CSS and all theme/plugin CSS remain untouched. Effective only with Inline Dynamic Styles.', 'nyxonn-builder' ), $settings, __( 'Advanced', 'nyxonn-builder' ) ); ?><div class="nx-performance-setting"><label for="nx-critical-threshold"><strong><?php esc_html_e( 'Critical CSS Threshold', 'nyxonn-builder' ); ?></strong><p><?php esc_html_e( 'Controls the estimated initial Nyxonn height: Low 600px, Medium 900px, High 1200px.', 'nyxonn-builder' ); ?></p></label><select id="nx-critical-threshold" name="critical_threshold"><option value="low" <?php selected( $settings['critical_threshold'], 'low' ); ?>><?php esc_html_e( 'Low ÃƒÆ’Ã‚Â¢ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬ÃƒÂ¢Ã¢â€šÂ¬Ã‚Â 600px', 'nyxonn-builder' ); ?></option><option value="medium" <?php selected( $settings['critical_threshold'], 'medium' ); ?>><?php esc_html_e( 'Medium ÃƒÆ’Ã‚Â¢ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬ÃƒÂ¢Ã¢â€šÂ¬Ã‚Â 900px', 'nyxonn-builder' ); ?></option><option value="high" <?php selected( $settings['critical_threshold'], 'high' ); ?>><?php esc_html_e( 'High ÃƒÆ’Ã‚Â¢ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬ÃƒÂ¢Ã¢â€šÂ¬Ã‚Â 1200px', 'nyxonn-builder' ); ?></option></select></div></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'JavaScript Optimization', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Nyxonn core frontend interactions use browser-native JavaScript and do not depend on jQuery.', 'nyxonn-builder' ); ?></p></div></div><?php self::render_performance_toggle( 'dynamic_javascript', __( 'Dynamic JavaScript', 'nyxonn-builder' ), __( 'Load the Nyxonn interaction runtime only for navigation, sticky, scroll, or mouse-effect features. Turning this off loads it on every Nyxonn page.', 'nyxonn-builder' ), $settings, __( 'Recommended', 'nyxonn-builder' ) ); ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--info"><?php esc_html_e( 'Global jQuery deferral and arbitrary third-party script changes are not performed.', 'nyxonn-builder' ); ?></div></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Fonts & Icons', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php echo esc_html( sprintf( /* translators: 1: custom font count, 2: custom icon library count. */ __( '%1$d custom fonts and %2$d custom icon libraries are currently registered.', 'nyxonn-builder' ), $custom_fonts, $custom_icons ) ); ?></p></div></div><?php self::render_performance_toggle( 'dynamic_icons', __( 'Dynamic Icons', 'nyxonn-builder' ), __( 'Load Font Awesome and registered custom icon styles only when saved Nyxonn modules use icons. Turning this off loads them broadly on Nyxonn pages.', 'nyxonn-builder' ), $settings, __( 'Recommended', 'nyxonn-builder' ) ); ?><?php self::render_performance_toggle( 'optimize_google_fonts', __( 'Optimize Google Fonts Loading', 'nyxonn-builder' ), __( 'Deduplicate detected families and combine them into one display=swap request. Turning this off uses one request per family.', 'nyxonn-builder' ), $settings, __( 'Recommended', 'nyxonn-builder' ) ); ?><?php self::render_performance_toggle( 'disable_google_fonts', __( 'Disable Google Fonts', 'nyxonn-builder' ), __( 'Prevent Nyxonn Google Fonts requests without changing saved font-family values. System and uploaded custom fonts continue to work.', 'nyxonn-builder' ), $settings ); ?></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'WordPress Optimization', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Site-wide WordPress behavior is changed only where detection is reliable.', 'nyxonn-builder' ); ?></p></div></div><?php self::render_performance_toggle( 'disable_emojis', __( 'Disable WordPress Emojis', 'nyxonn-builder' ), __( 'Remove WordPress emoji frontend detection and styles site-wide. This does not alter wp-admin.', 'nyxonn-builder' ), $settings, __( 'Advanced', 'nyxonn-builder' ) ); ?><div class="nx-performance-setting"><div><strong><?php esc_html_e( 'Optimize Gutenberg Block CSS', 'nyxonn-builder' ); ?></strong><p><?php esc_html_e( 'Not enabled: reliable request-wide block detection is unavailable, so WordPress block styles remain untouched.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge"><?php esc_html_e( 'Deferred for safety', 'nyxonn-builder' ); ?></span></div></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Compatibility', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Disabling a dynamic control restores broader loading only on requests that already use Nyxonn. Saved layouts and module data are never rewritten.', 'nyxonn-builder' ); ?></p></div></div><dl class="nyxonn-builder-admin-status-list"><div><dt><?php esc_html_e( 'jQuery', 'nyxonn-builder' ); ?></dt><dd><?php esc_html_e( 'Not modified globally', 'nyxonn-builder' ); ?></dd></div><div><dt><?php esc_html_e( 'Third-party scripts', 'nyxonn-builder' ); ?></dt><dd><?php esc_html_e( 'Not modified', 'nyxonn-builder' ); ?></dd></div><div><dt><?php esc_html_e( 'Runtime overrides', 'nyxonn-builder' ); ?></dt><dd><?php esc_html_e( 'Non-destructive effective-settings filter available', 'nyxonn-builder' ); ?></dd></div></dl></section>
            <div class="nyxonn-builder-admin-actions"><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary" type="submit"><?php esc_html_e( 'Save Performance Settings', 'nyxonn-builder' ); ?></button></div>
        </form>
        <section class="nyxonn-builder-admin-card nyxonn-builder-admin-danger-zone"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Reset Performance Settings', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Restore only Nyxonn performance preferences to their defaults.', 'nyxonn-builder' ); ?></p></div><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" onsubmit="return window.confirm('<?php echo esc_js( __( 'Reset all Nyxonn performance settings?', 'nyxonn-builder' ) ); ?>');"><input type="hidden" name="action" value="nyxonn_builder_reset_performance" /><?php wp_nonce_field( 'nyxonn_builder_reset_performance' ); ?><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--destructive" type="submit"><?php esc_html_e( 'Reset Performance Settings', 'nyxonn-builder' ); ?></button></form></section>
        <?php
        self::render_admin_shell_end();
    }

    private static function render_performance_toggle( $key, $title, $description, $settings, $badge = '' ) {
        ?>
        <div class="nx-performance-setting"><div><strong><?php echo esc_html( $title ); ?></strong><p><?php echo esc_html( $description ); ?></p></div><div class="nx-performance-setting__control"><?php if ( $badge ) : ?><span class="nyxonn-builder-admin-badge<?php echo __( 'Recommended', 'nyxonn-builder' ) === $badge ? ' nyxonn-builder-admin-badge--success' : ''; ?>"><?php echo esc_html( $badge ); ?></span><?php endif; ?><label class="nyxonn-builder-admin-toggle"><input type="checkbox" name="<?php echo esc_attr( $key ); ?>" value="1" <?php checked( ! empty( $settings[ $key ] ) ); ?> /><span class="nyxonn-builder-admin-toggle__track" aria-hidden="true"></span><span class="screen-reader-text"><?php echo esc_html( $title ); ?></span></label></div></div>
        <?php
    }

    public static function render_integrations() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to view integrations.', 'nyxonn-builder' ), '', [ 'response' => 403 ] );
        }

        $google_fonts_enabled = ! \NyxonnBuilder\Performance_Settings::google_fonts_disabled();
        $font_count = count( \NyxonnBuilder\Assets_Manager::get_fonts() );
        $icon_count = count( \NyxonnBuilder\Assets_Manager::get_icons() );
        $pro_active = function_exists( 'nyxonn_fx_has_extension' ) && nyxonn_fx_has_extension( 'pro' );
        self::render_admin_shell_start(
            'nyxonn-builder-integrations',
            __( 'Integrations', 'nyxonn-builder' ),
            __( 'View integrations and optional extensions available for Nyxonn Builder.', 'nyxonn-builder' )
        );
        ?>
        <div class="nyxonn-builder-admin-grid nyxonn-builder-admin-grid--two-column">
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'WordPress', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Nyxonn Builder uses WordPress content, media, roles, REST endpoints, and admin APIs.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge nyxonn-builder-admin-badge--success"><?php esc_html_e( 'Available', 'nyxonn-builder' ); ?></span></div></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Google Fonts', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Remote font requests follow the current Performance setting and saved typography usage.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge<?php echo $google_fonts_enabled ? ' nyxonn-builder-admin-badge--success' : ''; ?>"><?php echo $google_fonts_enabled ? esc_html__( 'Enabled', 'nyxonn-builder' ) : esc_html__( 'Disabled', 'nyxonn-builder' ); ?></span></div><a class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-performance' ) ); ?>"><?php esc_html_e( 'Open Performance', 'nyxonn-builder' ); ?></a></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Custom Fonts', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php echo esc_html( sprintf( /* translators: %d: uploaded font family count. */ _n( '%d uploaded font family is registered.', '%d uploaded font families are registered.', $font_count, 'nyxonn-builder' ), $font_count ) ); ?></p></div><span class="nyxonn-builder-admin-badge<?php echo $font_count ? ' nyxonn-builder-admin-badge--success' : ''; ?>"><?php echo $font_count ? esc_html__( 'Configured', 'nyxonn-builder' ) : esc_html__( 'Not configured', 'nyxonn-builder' ); ?></span></div><a class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-assets' ) ); ?>"><?php esc_html_e( 'Manage Assets', 'nyxonn-builder' ); ?></a></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Custom Icon Libraries', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php echo esc_html( sprintf( /* translators: %d: registered icon stylesheet count. */ _n( '%d icon stylesheet is registered.', '%d icon stylesheets are registered.', $icon_count, 'nyxonn-builder' ), $icon_count ) ); ?></p></div><span class="nyxonn-builder-admin-badge<?php echo $icon_count ? ' nyxonn-builder-admin-badge--success' : ''; ?>"><?php echo $icon_count ? esc_html__( 'Configured', 'nyxonn-builder' ) : esc_html__( 'Not configured', 'nyxonn-builder' ); ?></span></div><a class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-assets' ) ); ?>"><?php esc_html_e( 'Manage Assets', 'nyxonn-builder' ); ?></a></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Nyxonn Pro', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Status is based only on extension registration; licensing remains Pro-owned.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge<?php echo $pro_active ? ' nyxonn-builder-admin-badge--success' : ''; ?>"><?php echo $pro_active ? esc_html__( 'Active', 'nyxonn-builder' ) : esc_html__( 'Not Installed', 'nyxonn-builder' ); ?></span></div></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'ACF Add-on', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Optional extension architecture; no ACF runtime or dependency is included in Free.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge"><?php esc_html_e( 'Not Installed', 'nyxonn-builder' ); ?></span></div></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'WooCommerce Add-on', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Optional extension architecture; no WooCommerce runtime or dependency is included in Free.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge"><?php esc_html_e( 'Not Installed', 'nyxonn-builder' ); ?></span></div></section>
        </div>
        <div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--info"><?php esc_html_e( 'Optional Nyxonn Builder add-ons load only when installed and required.', 'nyxonn-builder' ); ?></div>
        <?php
        self::render_admin_shell_end();
    }

    public static function render_tools() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to view tools.', 'nyxonn-builder' ), '', [ 'response' => 403 ] );
        }
        $system_info = \NyxonnBuilder\Tools::get_system_information();
        $notice = isset( $_GET['nyxonn_builder_notice'] ) ? sanitize_key( wp_unslash( $_GET['nyxonn_builder_notice'] ) ) : '';
        self::render_admin_shell_start(
            'nyxonn-builder-tools',
            __( 'Tools', 'nyxonn-builder' ),
            __( 'Maintenance, diagnostics, and support utilities for Nyxonn Builder.', 'nyxonn-builder' )
        );
        ?>
        <?php if ( 'imported' === $notice ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success" role="status"><?php esc_html_e( 'Nyxonn Builder configuration imported successfully.', 'nyxonn-builder' ); ?></div><?php elseif ( in_array( $notice, [ 'invalid_file', 'invalid_import' ], true ) ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--error" role="alert"><?php esc_html_e( 'The settings import was rejected. Choose a valid Nyxonn Builder JSON export smaller than 1 MB.', 'nyxonn-builder' ); ?></div><?php endif; ?>
        <section class="nyxonn-builder-admin-card nx-template-list-card" aria-labelledby="nx-system-info-title">
            <div class="nx-tools-card-header"><div><h2 id="nx-system-info-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'System Information', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Sanitized environment details useful for compatibility checks and support.', 'nyxonn-builder' ); ?></p></div><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" type="button" data-nx-copy-system-info data-copied-label="<?php esc_attr_e( 'Copied', 'nyxonn-builder' ); ?>"><?php esc_html_e( 'Copy System Info', 'nyxonn-builder' ); ?></button></div>
            <div class="nyxonn-builder-admin-table-wrap"><table class="nyxonn-builder-admin-table"><tbody><?php foreach ( $system_info as $label => $value ) : ?><tr><th scope="row"><?php echo esc_html( $label ); ?></th><td><?php echo esc_html( $value ); ?></td></tr><?php endforeach; ?></tbody></table></div>
            <label class="screen-reader-text" for="nx-system-info-output"><?php esc_html_e( 'Sanitized system information', 'nyxonn-builder' ); ?></label><textarea id="nx-system-info-output" class="nx-tools-support-text" readonly data-nx-system-info><?php echo esc_textarea( \NyxonnBuilder\Tools::get_support_text() ); ?></textarea>
        </section>
        <div class="nyxonn-builder-admin-grid nyxonn-builder-admin-grid--two-column">
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Maintenance', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Nyxonn Builder generates styles dynamically and has no persistent CSS cache to clear.', 'nyxonn-builder' ); ?></p></div></div><div class="nyxonn-builder-admin-actions"><a class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-global-design' ) ); ?>"><?php esc_html_e( 'Global Design Tools', 'nyxonn-builder' ); ?></a><a class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-assets' ) ); ?>"><?php esc_html_e( 'Manage Assets', 'nyxonn-builder' ); ?></a></div></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Export Configuration', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Download Builder, Global Design, Performance, and builder-role settings. Layouts, templates, media, custom code, licenses, and Pro data are excluded.', 'nyxonn-builder' ); ?></p></div></div><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>"><input type="hidden" name="action" value="nyxonn_builder_export_settings" /><?php wp_nonce_field( 'nyxonn_builder_export_settings' ); ?><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary" type="submit"><?php esc_html_e( 'Export Settings', 'nyxonn-builder' ); ?></button></form></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Import Configuration', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Import a Nyxonn Builder settings JSON file. Supported configuration on this site will be replaced; unknown fields are ignored.', 'nyxonn-builder' ); ?></p></div></div><form method="post" enctype="multipart/form-data" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" onsubmit="return window.confirm('<?php echo esc_js( __( 'Import and replace the supported Nyxonn Builder configuration?', 'nyxonn-builder' ) ); ?>');"><input type="hidden" name="action" value="nyxonn_builder_import_settings" /><?php wp_nonce_field( 'nyxonn_builder_import_settings' ); ?><label for="nx-settings-file" class="nyxonn-builder-admin-field"><span><?php esc_html_e( 'JSON settings file', 'nyxonn-builder' ); ?></span><input id="nx-settings-file" type="file" name="nyxonn_builder_settings_file" accept="application/json,.json" required /></label><div class="nyxonn-builder-admin-actions"><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary" type="submit"><?php esc_html_e( 'Import Settings', 'nyxonn-builder' ); ?></button></div></form></section>
        </div>
        <?php
        self::render_admin_shell_end();
    }

    /** Render the Free-owned Pro information and status page. */
    public static function render_upgrade_to_pro() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to view this page.', 'nyxonn-builder' ) );
        }

        $pro_active   = self::is_pro_extension_registered();
        $purchase_url = self::get_pro_purchase_url();
        $pro_data      = $pro_active ? Extension_API::get_extension( 'pro' ) : null;
        $pro_version   = is_array( $pro_data ) && ! empty( $pro_data['version'] ) ? sanitize_text_field( $pro_data['version'] ) : '';
        $license_status = '';
        if ( $pro_active && class_exists( '\NyxonnBuilderPro\License_Client' ) && is_callable( [ '\NyxonnBuilderPro\License_Client', 'get_state' ] ) ) {
            $license_state = \NyxonnBuilderPro\License_Client::get_state();
            if ( is_array( $license_state ) && ! empty( $license_state['status'] ) ) {
                $license_status = ucfirst( sanitize_key( $license_state['status'] ) );
            }
        }

        if ( $pro_active ) {
            $page_title       = __( 'Nyxonn Pro Active', 'nyxonn-builder' );
            $page_description = __( 'Your registered Nyxonn Pro extension is ready to use with Nyxonn Builder.', 'nyxonn-builder' );
            $state_label      = __( 'Active', 'nyxonn-builder' );
        } elseif ( $purchase_url ) {
            $page_title       = __( 'Nyxonn Pro', 'nyxonn-builder' );
            $page_description = __( 'Explore advanced tools that extend the Nyxonn Builder workflow.', 'nyxonn-builder' );
            $state_label      = __( 'Available', 'nyxonn-builder' );
        } else {
            $page_title       = __( 'Nyxonn Pro ÃƒÆ’Ã‚Â¢ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬ÃƒÂ¢Ã¢â€šÂ¬Ã‚Â Coming Soon', 'nyxonn-builder' );
            $page_description = __( 'More advanced design and development tools are being prepared for Nyxonn Builder.', 'nyxonn-builder' );
            $state_label      = __( 'Coming Soon', 'nyxonn-builder' );
        }

        self::render_admin_shell_start(
            'nyxonn-builder-upgrade-pro',
            __( 'Nyxonn Pro', 'nyxonn-builder' ),
            __( 'See the Pro roadmap and the status of the optional Nyxonn Pro extension.', 'nyxonn-builder' )
        );
        ?>
        <div class="nyxonn-builder-pro-page">
            <section class="nyxonn-builder-admin-card nyxonn-builder-admin-card--upgrade nyxonn-builder-pro-hero" aria-labelledby="nyxonn-builder-pro-state-title">
                <div class="nyxonn-builder-pro-state">
                    <div>
                        <span class="nyxonn-builder-admin-eyebrow"><?php esc_html_e( 'Nyxonn Builder', 'nyxonn-builder' ); ?></span>
                        <h2 id="nyxonn-builder-pro-state-title" class="nyxonn-builder-admin-card__title"><?php echo esc_html( $page_title ); ?></h2>
                        <p class="nyxonn-builder-admin-card__description"><?php echo esc_html( $page_description ); ?></p>
                    </div>
                    <span class="nyxonn-builder-admin-badge<?php echo $pro_active ? ' nyxonn-builder-admin-badge--success' : ''; ?>"><?php echo esc_html( $state_label ); ?></span>
                </div>

                <?php if ( $pro_active ) : ?>
                    <dl class="nyxonn-builder-admin-status-list nyxonn-builder-pro-status">
                        <div><dt><?php esc_html_e( 'Extension status', 'nyxonn-builder' ); ?></dt><dd><?php esc_html_e( 'Active', 'nyxonn-builder' ); ?></dd></div>
                        <?php if ( $pro_version ) : ?>
                            <div><dt><?php esc_html_e( 'Version', 'nyxonn-builder' ); ?></dt><dd><?php echo esc_html( $pro_version ); ?></dd></div>
                        <?php endif; ?>
                        <?php if ( $license_status ) : ?>
                            <div><dt><?php esc_html_e( 'License status', 'nyxonn-builder' ); ?></dt><dd><?php echo esc_html( $license_status ); ?></dd></div>
                        <?php endif; ?>
                    </dl>
                <?php elseif ( $purchase_url ) : ?>
                    <div class="nyxonn-builder-admin-actions nyxonn-builder-pro-actions">
                        <a class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary" href="<?php echo esc_url( $purchase_url ); ?>" target="_blank" rel="noopener noreferrer">
                            <?php esc_html_e( 'Get Nyxonn Pro', 'nyxonn-builder' ); ?>
                        </a>
                    </div>
                <?php endif; ?>
            </section>

            <section class="nyxonn-builder-admin-card" aria-labelledby="nyxonn-builder-pro-features-title">
                <div class="nyxonn-builder-admin-card__header">
                    <div>
                        <h2 id="nyxonn-builder-pro-features-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Pro feature preview', 'nyxonn-builder' ); ?></h2>
                        <p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'A preview of the advanced capabilities planned for the Nyxonn Pro roadmap.', 'nyxonn-builder' ); ?></p>
                    </div>
                    <span class="nyxonn-builder-admin-badge"><?php esc_html_e( 'Coming Soon', 'nyxonn-builder' ); ?></span>
                </div>
                <ul class="nyxonn-builder-pro-feature-grid">
                    <?php
                    $pro_features = [
                        __( 'Premium modules', 'nyxonn-builder' ),
                        __( 'Advanced Theme Builder', 'nyxonn-builder' ),
                        __( 'Global Custom CSS', 'nyxonn-builder' ),
                        __( 'Global Custom JavaScript / Scripts', 'nyxonn-builder' ),
                        __( 'Advanced custom CSS and code controls', 'nyxonn-builder' ),
                        __( 'Premium reusable templates', 'nyxonn-builder' ),
                        __( 'Advanced effects and developer controls', 'nyxonn-builder' ),
                        __( 'Future Nyxonn AI features', 'nyxonn-builder' ),
                    ];
                    foreach ( $pro_features as $feature ) :
                        ?>
                        <li><span class="dashicons dashicons-star-empty" aria-hidden="true"></span><span><?php echo esc_html( $feature ); ?></span></li>
                    <?php endforeach; ?>
                </ul>
            </section>

            <section class="nyxonn-builder-admin-card" aria-labelledby="nyxonn-builder-pro-comparison-title">
                <div class="nyxonn-builder-admin-card__header">
                    <div>
                        <h2 id="nyxonn-builder-pro-comparison-title" class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Free and Pro at a glance', 'nyxonn-builder' ); ?></h2>
                        <p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Nyxonn Free includes the complete core building workflow, while Pro expands it with advanced tools.', 'nyxonn-builder' ); ?></p>
                    </div>
                </div>
                <div class="nyxonn-builder-pro-comparison-grid">
                    <section class="nyxonn-builder-pro-comparison-column" aria-labelledby="nyxonn-builder-pro-free-title">
                        <h3 id="nyxonn-builder-pro-free-title"><?php esc_html_e( 'Nyxonn Free', 'nyxonn-builder' ); ?></h3>
                        <ul class="nyxonn-builder-pro-check-list">
                            <li><?php esc_html_e( 'Core visual Builder', 'nyxonn-builder' ); ?></li>
                            <li><?php esc_html_e( 'Responsive editing', 'nyxonn-builder' ); ?></li>
                            <li><?php esc_html_e( 'Free modules', 'nyxonn-builder' ); ?></li>
                            <li><?php esc_html_e( 'Global Design', 'nyxonn-builder' ); ?></li>
                            <li><?php esc_html_e( 'Basic styling', 'nyxonn-builder' ); ?></li>
                            <li><?php esc_html_e( 'Page template portability', 'nyxonn-builder' ); ?></li>
                        </ul>
                    </section>
                    <section class="nyxonn-builder-pro-comparison-column nyxonn-builder-pro-comparison-column--pro" aria-labelledby="nyxonn-builder-pro-pro-title">
                        <div class="nyxonn-builder-pro-comparison-heading">
                            <h3 id="nyxonn-builder-pro-pro-title"><?php esc_html_e( 'Nyxonn Pro', 'nyxonn-builder' ); ?></h3>
                            <span class="nyxonn-builder-admin-badge"><?php echo $pro_active ? esc_html__( 'Active + Roadmap', 'nyxonn-builder' ) : esc_html__( 'Coming Soon', 'nyxonn-builder' ); ?></span>
                        </div>
                        <ul class="nyxonn-builder-pro-roadmap-list">
                            <li><?php esc_html_e( 'Premium modules', 'nyxonn-builder' ); ?></li>
                            <li><?php esc_html_e( 'Advanced Theme Builder', 'nyxonn-builder' ); ?></li>
                            <li><?php esc_html_e( 'Global Custom CSS', 'nyxonn-builder' ); ?></li>
                            <li><?php esc_html_e( 'Custom JavaScript / Scripts', 'nyxonn-builder' ); ?></li>
                            <li><?php esc_html_e( 'Advanced code and styling controls', 'nyxonn-builder' ); ?></li>
                            <li><?php esc_html_e( 'Premium templates and future AI', 'nyxonn-builder' ); ?></li>
                        </ul>
                    </section>
                </div>
            </section>
        </div>
        <?php
        self::render_admin_shell_end();
    }

    /** Return a public HTTPS marketing URL supplied by vendor configuration. */
    private static function get_pro_purchase_url() {
        $url = apply_filters( 'nyxonn_fx_pro_purchase_url', '' );
        if ( ! is_string( $url ) ) {
            return '';
        }

        $url   = esc_url_raw( trim( $url ), [ 'https' ] );
        $parts = $url ? wp_parse_url( $url ) : false;
        if ( ! $url
            || ! filter_var( $url, FILTER_VALIDATE_URL )
            || ! is_array( $parts )
            || 'https' !== ( $parts['scheme'] ?? '' )
            || empty( $parts['host'] )
        ) {
            return '';
        }

        return $url;
    }

    /** Registered compatibility is the only Free-side Pro availability signal. */
    private static function is_pro_extension_registered() {
        return function_exists( 'nyxonn_fx_has_extension' ) && nyxonn_fx_has_extension( 'pro' );
    }

    /**
     * Render Settings page
     */
    public static function render_settings() {
        if ( ! current_user_can( 'manage_options' ) ) {
            wp_die( esc_html__( 'You do not have permission to view settings.', 'nyxonn-builder' ), '', [ 'response' => 403 ] );
        }
        $safe_mode = \NyxonnBuilder\Safe_Mode::is_enabled();
        $notice = isset( $_GET['nyxonn_builder_notice'] ) ? sanitize_key( wp_unslash( $_GET['nyxonn_builder_notice'] ) ) : '';
        self::render_admin_shell_start(
            'nyxonn-builder-settings',
            __( 'Settings', 'nyxonn-builder' ),
            __( 'Configure general Nyxonn Builder plugin behavior.', 'nyxonn-builder' )
        );
        ?>
        <?php if ( 'safe_mode_enabled' === $notice ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success" role="status"><?php esc_html_e( 'Safe Mode enabled. Saved Nyxonn content and preferences were not changed.', 'nyxonn-builder' ); ?></div><?php elseif ( 'safe_mode_disabled' === $notice ) : ?><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--success" role="status"><?php esc_html_e( 'Safe Mode disabled. Normal Nyxonn frontend behavior has resumed.', 'nyxonn-builder' ); ?></div><?php endif; ?>
        <div class="nyxonn-builder-admin-grid nyxonn-builder-admin-grid--two-column">
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'General Configuration', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Existing configuration remains in its owning management screen.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge nyxonn-builder-admin-badge--success"><?php esc_html_e( 'Up to date', 'nyxonn-builder' ); ?></span></div><dl class="nyxonn-builder-admin-status-list"><div><dt><?php esc_html_e( 'Builder behavior', 'nyxonn-builder' ); ?></dt><dd><a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-builder-settings' ) ); ?>"><?php esc_html_e( 'Builder Settings', 'nyxonn-builder' ); ?></a></dd></div><div><dt><?php esc_html_e( 'Design tokens', 'nyxonn-builder' ); ?></dt><dd><a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-global-design' ) ); ?>"><?php esc_html_e( 'Global Design', 'nyxonn-builder' ); ?></a></dd></div><div><dt><?php esc_html_e( 'Remote font behavior', 'nyxonn-builder' ); ?></dt><dd><a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-performance' ) ); ?>"><?php esc_html_e( 'Performance', 'nyxonn-builder' ); ?></a></dd></div><div><dt><?php esc_html_e( 'Builder access', 'nyxonn-builder' ); ?></dt><dd><a href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-role-manager' ) ); ?>"><?php esc_html_e( 'Role Manager', 'nyxonn-builder' ); ?></a></dd></div></dl></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Advanced / Troubleshooting', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Temporarily suppress selected optional frontend behavior while preserving layouts, templates, settings, admin access, and the Visual Builder.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge<?php echo $safe_mode ? '' : ' nyxonn-builder-admin-badge--success'; ?>"><?php echo $safe_mode ? esc_html__( 'Safe Mode Active', 'nyxonn-builder' ) : esc_html__( 'Normal Mode', 'nyxonn-builder' ); ?></span></div><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>"><input type="hidden" name="action" value="nyxonn_builder_update_safe_mode" /><input type="hidden" name="redirect_to" value="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-settings' ) ); ?>" /><?php wp_nonce_field( 'nyxonn_builder_update_safe_mode' ); ?><label class="nyxonn-builder-admin-toggle"><input type="checkbox" name="safe_mode" value="1" <?php checked( $safe_mode ); ?> /><span class="nyxonn-builder-admin-toggle__track" aria-hidden="true"></span><span><?php esc_html_e( 'Safe Mode', 'nyxonn-builder' ); ?></span></label><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'When active, Google Fonts, uploaded custom fonts, custom icon libraries, and compatible optional-extension output are bypassed on the frontend. Stored values are untouched.', 'nyxonn-builder' ); ?></p><div class="nyxonn-builder-admin-actions"><button class="nyxonn-builder-admin-button nyxonn-builder-admin-button--primary" type="submit"><?php echo $safe_mode ? esc_html__( 'Save / Keep Safe Mode Active', 'nyxonn-builder' ) : esc_html__( 'Enable Safe Mode', 'nyxonn-builder' ); ?></button></div></form></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Data Preservation', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Nyxonn Builder has no uninstall deletion routine. Deactivation and plugin deletion do not remove saved layouts, templates, plugin settings, role assignments, or Media Library files.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge nyxonn-builder-admin-badge--success"><?php esc_html_e( 'Data preserved', 'nyxonn-builder' ); ?></span></div><div class="nyxonn-builder-admin-notice nyxonn-builder-admin-notice--info"><?php esc_html_e( 'Destructive cleanup is intentionally deferred until every Free-owned data type can be removed safely without touching Pro-owned data or uploaded media.', 'nyxonn-builder' ); ?></div></section>
            <section class="nyxonn-builder-admin-card"><div class="nyxonn-builder-admin-card__header"><div><h2 class="nyxonn-builder-admin-card__title"><?php esc_html_e( 'Diagnostics', 'nyxonn-builder' ); ?></h2><p class="nyxonn-builder-admin-card__description"><?php esc_html_e( 'Nyxonn Builder follows WordPress debug mode and does not add a separate development-mode setting.', 'nyxonn-builder' ); ?></p></div><span class="nyxonn-builder-admin-badge"><?php echo defined( 'WP_DEBUG' ) && WP_DEBUG ? esc_html__( 'WP_DEBUG enabled', 'nyxonn-builder' ) : esc_html__( 'WP_DEBUG disabled', 'nyxonn-builder' ); ?></span></div><a class="nyxonn-builder-admin-button nyxonn-builder-admin-button--secondary" href="<?php echo esc_url( admin_url( 'admin.php?page=nyxonn-builder-tools' ) ); ?>"><?php esc_html_e( 'Open System Information', 'nyxonn-builder' ); ?></a></section>
        </div>
        <?php
        self::render_admin_shell_end();
    }

    /**
     * Helper: Count active Nyxonn Builder pages
     */
    private static function count_active_pages() {
        global $wpdb;
        $count = $wpdb->get_var(
            "SELECT COUNT(*) FROM {$wpdb->postmeta} 
            WHERE meta_key = '_nyxonn_builder_enabled' AND meta_value = '1'"
        );
        return $count ?: 0;
    }

    /**
     * Helper: Count total modules across all pages
     */
    private static function count_total_modules() {
        global $wpdb;
        $count = $wpdb->get_var(
            "SELECT COUNT(*) FROM {$wpdb->postmeta} 
            WHERE meta_key = '_nyxonn_builder_layout' AND meta_value != ''"
        );
        return $count ?: 0;
    }

    /**
     * Helper: Count theme templates
     */
    private static function count_theme_templates() {
        return self::count_theme_templates_by_status( 'publish' );
    }

    private static function count_theme_templates_by_status( $status ) {
        $types = class_exists( '\NyxonnBuilder\Template_Manager' ) ? [ 'header', 'footer' ] : [];
        if ( empty( $types ) ) {
            return 0;
        }

        $ids = get_posts( [
            'post_type'      => \NyxonnBuilder\Template_Manager::TEMPLATES_POST_TYPE,
            'post_status'    => $status,
            'posts_per_page' => -1,
            'fields'         => 'ids',
            'meta_query'     => [
                [
                    'key'     => \NyxonnBuilder\Template_Manager::TEMPLATE_TYPE_META,
                    'value'   => $types,
                    'compare' => 'IN',
                ],
            ],
        ] );

        return count( $ids );
    }

}